It was the summer of 1944 and the infantry of the First Canadian Army was dying by the hundreds for one reason alone. They were walking. South of Caen, the landscape opened into wide rolling cereal plains. There was no cover, no trees, no hedgerows, no ditches deep enough to save a man. The fields were flat and golden and completely exposed and the German Army had turned them into killing grounds.
Machine gun nests were dug in at every tree line and farm building. The MG 42, the fastest automatic weapon on the battlefield at 1200 rounds per minute, could sweep 400 yards of open ground in under 3 seconds. For the infantry walking behind the tanks, crossing those fields was not an assault. It was a sentence.
The Canadians had been fighting the same grinding battles since D-Day. They were given the most critical, most punishing task on the Allied front. To hold the weight of the German armored reserves near Caen to absorb the panzer divisions that might otherwise crash into the Americans to the west. Every time the Canadians pushed forward, the German defenders shifted their heavy units to meet them.
The 12th SS Panzer Division Hitlerjugend, some of the most fanatical soldiers in the German Army, held the ground south of Caen with tanks, 88 mm guns, and an absolute ferocity that bled the Canadians white. In late July, Operation Spring had been a disaster. The Second Canadian Infantry Division attacked across open ground and was torn apart.
Hundreds of men fell in a matter of hours. Some battalions lost their commanding officers. The lessons should have been impossible to ignore and they were not. One man was watching, calculating, and refusing to accept that this was simply the cost of war. Lieutenant-General Guy Simonds was not a man who accepted the word impossible.
He was 41 years old in the summer of 1944, one of the youngest senior commanders in the Allied Forces. Montgomery himself called Simonds the best Canadian general of the war. And Montgomery was not a man who handed out compliments easily. Simonds was meticulous, demanding, and utterly relentless in his search for new tactical solutions.
He had already demonstrated in Sicily and Italy that he was willing to redesign the rule book if the rule book was getting his men killed. But now he faced a problem that was as simple as it was lethal. The infantry could not keep pace with the tanks, and the tanks could not operate without the infantry. When the armor advanced alone, it was blinded and ambushed by handheld anti-tank weapons.
When the infantry advanced on foot to provide protection, they were shredded by machine gun fire before they could close the distance. The two arms of the Allied assault were working against each other because the Germans had understood with brutal efficiency how to use the gap between them. Simonds needed to eliminate that gap.
He needed a vehicle that could carry fully equipped infantry across open ground, keep pace with the tanks, absorb small arms fire and shell fragments, and deliver its soldiers alive to the edge of the objective. He did not have one. The American M3 half-track had been provided to British and Commonwealth forces, but supply was thin.
The Americans needed those vehicles as badly as the Canadians did. And the half-track was only 12 mm of armor. It could stop a rifle bullet on a good day, and nothing more. A machine gun burst at close range would tear through it. The Universal Carrier was even lighter and far too small. Neither vehicle could follow a tank across a contested field and deliver its men in a usable condition.
But Simonds had noticed something sitting idly in the fields behind his lines. The M7 Priest self-propelled gun was one of the most capable artillery vehicles of the war. Built on the chassis of the M3 Lee medium tank, it mounted a 105-mm howitzer in a wide open fighting compartment.
The gun and its pulpit-like machine gun ring, which the British had nicknamed after a clergyman’s reading stand, had made it a fixture of Allied artillery support since El Alamein. But in July of 1944, the three Canadian field artillery regiments that had used the M7 Priest since the Normandy landings were being re-equipped. The standard towed 25-pounder howitzers were coming forward to replace them.
The Priests were now redundant. Dozens of them sat waiting to be returned to American custody. They were sitting idle. They were armored. They were tracked. And they had a very large, very empty fighting compartment. Simonds looked at the Priests and asked a question that would change the course of armored warfare forever.
What if you took out the gun? On the 2nd of August, 1944, Simonds submitted his outline for Operation Totalize, the next major Canadian push south toward Falaise. Buried inside that document was a new concept. The infantry accompanying the armor, he wrote, must go straight through with the armor. He had arranged for roughly 30 stripped Priest chassis to be available to each of the attacking infantry divisions for this purpose.
The vehicles would protect the soldiers. They would carry them through the killing ground. The men would not walk. But the conversion had not happened yet. The vehicles were still artillery pieces. What followed was one of the most remarkable engineering sprints of the entire war. Major George Wiggans of the Royal Canadian Ordnance Corps was given the job and a brutally simple mandate.
Make it happen before the operation. He assembled approximately 250 men from 14 different workshop detachments, drawing from Canadian Ordnance, Canadian Electrical and Mechanical Engineers, Royal Canadian Army Service Corps units, and British Royal Electrical and Mechanical Engineers workshops. They set up what was called an advanced workshop detachment in the field, given the code name Kangaroo, the same name that would be passed to the vehicles themselves.
A junior officer on site, Major Gill Pointer, had suggested the name. The troops, he said, would be going into battle protected in mommy’s pouch. By the end of the 2nd of August, just hours after starting, 14 priests had already been stripped of their main armament. By the afternoon of the 3rd, a prototype was ready.
The 105-mm gun was removed. The gun mantlet was taken out. The ammunition storage bins were cleared. The crew seats that had served the artillery crews were gone. In their place, engineers welded steel plate across the open gap where the barrel had once protruded, sealing the forward aperture. Additional armor plate was welded to the sides, providing more protection for the soldiers who would crouch inside during the advance.
When welding rods ran short, the engineers sourced material from captured German supply stocks. When armor plate ran short, they stripped steel from wrecked landing craft on the nearby beaches and packed sand between layers of sheet metal where heavier material was unavailable. The .
50 caliber Browning machine gun and its ring mount at the front were kept, giving the vehicle a measure of defensive firepower. At 2:00 in the afternoon on the 3rd of August, the prototype was driven to the headquarters of 2nd Canadian Corps, where Symonds himself inspected it. He approved it on the spot. The engineers worked through the nights.
They worked in fields, in the open air, without proper workshop facilities. They had no jigs, no factory equipment, no purpose-built tools for this kind of conversion. They improvised every step of the way, and they did it in less than 6 days. By 8:00 in the evening on the 5th of August, 72 kangaroos were ready for action.
The infantry had one single day to practice mounting, riding, and dismounting from them. Then the operation began. On the evening of the 7th of August, 1944, the attacking forces assembled south of Caen under cover of darkness. Six enormous armored columns formed up, each only four vehicles wide, stretching back across the fields in long steel-tracked lines.
Tanks, kangaroo armored personnel carriers, half-tracks, self-propelled anti-tank guns, and mine flail tanks formed a new kind of weapon, a fully mechanized assault force that could punch through prepared German defenses without exposing a single infantryman to open ground. At 11:00 that night, Royal Air Force Bomber Command opened the attack.
Hundreds of heavy bombers saturated the German defensive positions on both flanks of the advance corridor, a 4-mi-wide channel along the Caen to Falaise road. The ground shook for miles in every direction. At half past 11:00, the armored columns began to move. The conditions were chaotic from the first minute.
The tanks churned the dry French farmland into billowing clouds of dust that cut visibility to almost nothing. Drivers lost their bearings. Several vehicles fell into bomb craters. Multiple trucks collided in the murk. To keep the columns oriented, Simonds had organized an extraordinary network of navigation aids.
Some vehicles carried radio direction finders tuned to navigation beacons. Artillery batteries fired distinctive colored shells to mark the axis of advance. And Bofors 40-mm anti-aircraft guns fired continuous streams of tracer rounds into the sea or sky pointing south, giving the drivers a glowing red arrow overhead to follow through the dust in the dark.
Inside the kangaroos, the soldiers of the 4th Canadian Infantry Brigade and the British 154th Highland Infantry Brigade rode in cramped, deafening armored darkness. The vehicles bucked and jolted over the broken ground. Shell fragments rang off the steel sides. Machine gun rounds that would have found a man in the open bounced away.
For the first time in the Normandy campaign, infantry was moving through a contested battlefield in something stronger than hope. By dawn, the columns of the 51st Highland Division had reached their intended positions. The infantry dismounted from their kangaroos within 200 yards of the objective villages of Cramesnil and Saint-Aignan-de-Cramesnil rushed forward and overran the German defenders before they had recovered from the bombardment.
The columns from the 2nd Canadian Division were delayed by fog and unexpected resistance on the right flank, but by noon on the 8th of August, the Allies had captured Verrières Ridge, ground that had defied every previous assault. And then the numbers came in, the numbers that made every senior officer in the Allied command stop what they were doing and pay close attention.
The 4th Canadian Infantry Brigade, which had advanced mounted in the Kangaroos, suffered seven men killed and 56 wounded. The 6th Canadian Infantry Brigade, fighting on foot in a parallel advance, suffered 68 men killed and 192 wounded. Two brigades, same objective, same enemy, same ground. One road, one walked.
The brigade that rode suffered less than 1/5 the casualties of the brigade that walked. 1/5. That figure was not a statistical anomaly, it was a verdict. It was the battlefield delivering its judgment on a century of tactical doctrine that had assumed infantry had to advance on foot. In a single night, Symons and his engineers had proved that assumption catastrophically wrong.
The Kangaroos went on to support Operation Tractable, the follow-up Canadian offensive in mid-August, and then the costly assaults on the heavily defended channel ports of Boulogne and Le Havre. A post-war history of the unit recorded what happened at Boulogne with quiet precision. During the assault, the Kangaroos came under considerable small arms fire and heavy shelling.
The casualties suffered by the infantry while they were in the Kangaroos were nil. This proved beyond a doubt the worth of the Kangaroo. The combined results of these first three actions made the name a byword among the infantry who had worked with them. Nil, not low, nil. Men who had been shielded by the armor walked off the battlefield alive, who would otherwise never have walked off at all.
The Kangaroo had stopped being a field experiment. It had become a necessity. But the original Priest Kangaroos were wearing out. They had been driven hard since before the conversion, and the intensive operational use from August through September pushed the surviving vehicles to their mechanical limits. By the end of September, of the original 72 that had entered operation and totalized, 61 remained battleworthy, and the rest needed major repairs.
The Priests were withdrawn and turned over to a British workshop near Kassel, eight. Replacement chassis was needed, and it was already waiting. 500 Canadian Ram tanks were sitting in England doing nothing useful. The Ram had been designed in 1941 as a Canadian adaptation of the American M3 Lee, built to give Canada its own domestically produced armored vehicle.
From 1941 to 1943, over 2,000 Rams had rolled off the production lines at the Montreal Locomotive Works. They were solid, reliable vehicles. But by the time Canadian units were deploying to Europe in strength, the M4 Sherman had completely superseded them. The Ram’s main gun, a two-pounder and later a six-pounder, was inadequate against German armor.
Its turret configuration could not be upgraded to take a larger weapon. Rather than ship obsolete tanks to the front, the Canadian and British armies had used the Rams to train armored crews in Canada and Britain, and then left them behind when those crews went to war in Shermans. Now, those surplus machines became the foundation of the most effective armored personnel carrier program of the war.
The Ram Kangaroo conversion followed the same principle as the Priest, but with decisive improvements. The turret was removed entirely, opening up a large protected space in the upper hull. The driving compartment was kept at the front for the crew of two. The space where the turret ring had been was fitted with bench seats along the sides, allowing 11 fully equipped soldiers to sit inside with room for more to squeeze in on top of the hull if needed.
A .30 caliber Browning machine gun was added for defensive purposes, either in a small front turret or mounted coaxially, depending on the version of RAM that was converted. On the early models, a secondary dual machine gun turret on the port side from the original RAM design was retained as well. Later conversions integrated the machine gun into the hull itself for a cleaner, lower profile.
The armor of the RAM was substantially heavier than the Priest. Where the Priest relied on the M3 Lee hull with protection designed primarily for artillery use, adequate against small arms and shell splinters, but thin at the sides, the RAM offered 25 mm at its weakest points and up to 87 mm of frontal armor at its strongest.
It was, by any measure, a far more survivable vehicle for the infantry inside. The men riding a RAM Kangaroo were protected by the same thickness of steel that a medium tank crew relied upon. The first RAM Kangaroos were delivered to Canadian troops near Rouen in October of 1944. On the 24th of October, the carrier unit that had operated the Priest Kangaroos was formally elevated to regimental status.
It became the first Canadian Armored Personnel Carrier Regiment, commanded by Lieutenant Colonel Gordon Churchill, a veteran of the First World War. The regiment was given its own emblem, a kangaroo standing over scroll bearing the motto “Armatos Fundit”, Latin for bringing forth the armed. They were no longer an improvised experiment, they were a permanent fighting force.
The demand was so great that a second regiment was formed in parallel. The 21st Army Group created two full armored personnel carrier regiments, one Canadian and one British, the 49th British Armored Per- Re- Personnel Carrier Regiment, each comprising two squadrons of 52 RAM Kangaroos, giving each regiment the capacity to carry an entire infantry battalion into battle in a single lift.
Both regiments were attached to the 79th British Armoured Division, the famous Hobart’s Funnies, the specialized armoured formation that had produced the swimming tanks, the flail tanks, and the bridge-laying tanks used on D-Day. The Kangaroo regiments operated alongside these other specialized vehicles as a coherent system of mechanized assault engineering that no other army possessed.
Through the autumn and winter of 1944, the Ram Kangaroos carried infantry into battle across the Netherlands. They rolled through Eindhoven and Nijmegen across the flooded polders where the ground was too soft for tanks to operate freely, but where the tracked Kangaroos could still push forward. They supported the liberation of ‘s-Hertogenbosch in October and during Operation Pheasant in the same month, they helped sweep through the Dutch cities with a speed and economy of infantry casualties that that would have been impossible on foot.
When the Allied advance ground to a halt through the brutal winter fighting of late 1944, the Kangaroos held the line alongside the armor in Belgium and the Netherlands. In February of 1945, they were committed to Operation Veritable, the grinding assault through the Reichswald Forest and the approaches to the Siegfried Line in Germany.
This was some of the worst fighting of the entire campaign. Dense forest, narrow roads, flooded fields, and a determined German defense of their own territory. The Kangaroos carried infantry of the 53rd Welsh Division through the mud and the shellfire, delivering soldiers directly into the assault without making them march through artillery concentrations.
The comparison with the German and American alternatives that were supposed to fulfill the same role is stark and instructive. The German Sd.Kfz. 251, the standard German armored half-track, was thinly armored, 14 and 1/2 mm at best. It was designed to move infantry on the battlefield, but it was a vehicle the German army itself knew was inadequate under direct fire.
German doctrine was to dismount the infantry several hundred meters from the objective and have them attack on foot, using the half-track only to get them to the staging area. Against a defended position, the SDKFZ 251 was not safe to drive within rifle range. The American M3 half-track that had been provided to British and Commonwealth forces was even thinner, 12 mm of protection.
American soldiers called the half-track the Purple Heart Box, a grim tribute to how reliably it rewarded its occupants with wounds and decorations in equal measure. The Kangaroo was something entirely different. It was fully tracked, which meant it could follow a tank anywhere that a tank could go, through fields, across ditches, over earthen banks, through shell craters.
It carried armor that was proof against all small arms fire and most shell splinters. And it was a genuine tank chassis designed to survive the battlefield environment rather than merely enter it. When the shooting started, the Kangaroo stayed in the fight. The half-track reversed out of it. In Italy, a parallel program had developed independently.
The British Eighth Army had converted Sherman tanks and some additional Priests into Kangaroo-type carriers to support operations in the Po Valley campaign in the final the final months of the war. New Zealand and Australian units used them as well. In the low-lying terrain of northern Italy, where rivers and flooded fields made movement on foot agonizingly slow and deadly, the Kangaroo concept provided the same life-saving margin it had demonstrated in Normandy.
By the time the war in Europe ended in May of 1945, the Kangaroo had proven itself not merely as a useful improvisation, but as the definitive solution to a problem that every army in the world had been trying and failing to solve since the invention of the tank. How do you protect the infantry that the tank depends on? You give them armor of their own. You give them tracks.
You make them part of the armored force, not an appendage to it. The lesson was not lost on the post-war military establishments of Britain and America. In the years immediately after the war, military planners on both sides of the Atlantic began work on purpose-built vehicles that could fulfill the role the Kangaroo had played.
The thinking was direct and explicit. British planning documents of the late 1940s and early 1950s trace the need for a new tracked armored personnel carrier directly back to the wartime experience of the Ram-based Kangaroo and the defrocked priest. The tracked armored personnel carrier, one analysis concluded, was a logical development of the British and Canadian Kangaroo vehicles used in Normandy, Holland, and Italy.
From those post-war studies came two of the most important armored vehicles of the Cold War era. The British FV432 entered service in 1963, built by GKN Sankey after more than a decade of development. It was a fully tracked, all-steel vehicle carrying 10 soldiers in a protected rear compartment designed to keep pace with main battle tanks across the European battlefields that military planners expected the Warsaw Pact to contest.
Its concept, a steel box on tank tracks delivering infantry safely to the fightings, was the direct descendant of the Kangaroo, institutionalized and engineered to a professional standard. Over 3,000 were built. Many remained in British service for more than 60 years, fighting in the Falklands, the Gulf, and the streets of Afghan towns.
A lineage stretching from the muddy fields south of Caen to conflicts Symons could never have imagined. In the United States, the same logic produced the M113, which entered service in 1960 and became the most widely used armored vehicle in American military history. Lighter than the FV432, built from welded aluminum for air mobility.
The M113 carried the same fundamental doctrine. Get the infantry to the objective under armor. Over 80,000 were produced. They served in Vietnam, the Middle East, and dozens of conflicts across the globe. Both vehicles descended from the same idea that Major Wiggans’ Workshop Detachment had hammered together in a Norman field in 6 days.
But, the Kangaroo’s influence did not stop with the Cold War generation. The greatest inheritors of Symons’ concept are the heavy armored personnel carriers developed by the Israeli Defense Forces from the 1980s onward. Israel fought its wars with painful experience of what happened when light armor carried infantry into defended urban positions.
The M113, despite its many virtues, had demonstrated that that aluminum and good intentions were not enough against rocket-propelled grenades and heavy machine gun fire in close-country fighting. The Israeli answer was radical. Convert the surplus Centurion tanks that had outlived their usefulness as gun platforms into carriers. Remove the turret, keep the hull, put the soldiers inside a vehicle that was built to take a direct hit from an anti-tank round.
The logic was identical to what Symons had done with the Priests in August of 1944. You have armored hulls sitting idle. You have infantry who need protection. The armor is already proven. Use it. The Namer, currently the most heavily armored personnel carrier ever built, carries that philosophy to its ultimate conclusion.
Built on the chassis of the Merkava Mark IV main battle tank, Israel’s most advanced fighting vehicle, the Namer weighs 66 tons. Its armor is effectively proof against any infantry anti-tank weapon in service. It carries 11 soldiers in a protected compartment with a rear ramp for rapid dismounting under fire.
It is what Guy Symons would have designed if he had 6 decades of development time and an unlimited budget instead of 6 days and a field full of scrap metal. The Kangaroo’s story is ultimately the story of a mind that refused to be constrained by existing doctrine. Guy Simonds looked at a battlefield that was killing his soldiers and asked a question that everyone else had avoided because the answer seemed impossible.
What if the infantry simply never had to walk across open ground at all? What if the armor protected not only the armored crews, but the men who depended on armor to survive? The engineers who converted those priests worked without sleep, without proper facilities, and without a single precedent to guide them.
They built the answer in less than a week. The casualty figures that emerged from Operation Totalize were not merely a success, they were a reckoning. Seven dead where 68 would have died. 56 wounded where 192 would have bled in the wheat fields south of Caen. Those numbers represent hundreds of men who came home.
Hundreds of families who did not receive a telegram. The engineering miracle was not the welding technique or the conversion process, impressive as those were. The miracle was the decision to think differently, to see a surplus artillery vehicle and recognize it as a solution to a problem that was killing people faster than any other single factor on the Normandy front.
What made the Kangaroo extraordinary was not just what it achieved in the moment, but what it revealed about military innovation itself. The best solutions are sometimes hiding in plain sight, already built, already proven, sitting in a field. They simply need someone willing to see them differently. Simonds did not invent a new vehicle.
He reinvented one that already existed, stripping away what it was and seeing what it could become. The gutted tank that became the Kangaroo did not merely change tactics. It changed the fundamental relationship between armor and infantry. A relationship that every army in the world has organized itself around ever since.
The men who rode south of Caen on the night of the 7th of August, 1944, sat inside something that had never existed before. They arrived, they fought, they survived. And every tracked armored personnel carrier that has protected soldiers in every war that followed was built in their image.
Disclaimer : This content may be created by AI for entertainment purposes. Any resemblance to real persons, events, or places is coincidental.
