In World Wars I and II, where thousands of tanks clashed on land and hundreds of ships fought at sea, and millions of men charged each other through trenches and across hills and valleys on foot, hundreds of thousands of soldiers fought from their trusty steeds: the bicycle.
Yeah, the two-wheeled contraptions that most kids get for Christmas or a birthday a few times throughout their childhood was once a cutting-edge weapon of war—and they were effective.
The modern bicycle, with pedals and two wheels, emerged in the 1860s and slowly turned the “velocipede” from a leisure device of rich gentlemen into a viable method of transport. Fairly quickly, especially after the introduction of rubber tires, military experts saw a role for bicycles in wartime.
The European powers embraced the new technology first—not surprising, since that’s where the bike originated. Most military advocates pushed for the bike as a scout vehicle, allowing observers to get close to the front or ride near enemy units to collect data and then quickly get away with the information to friendly lines.
But, by the 1880s, there were already hotly debated movements to use the cyclists as a sort of alternate mounted infantry. Mounted infantrymen rode horses like cavalry, but generally dismounted and fought on foot when they arrived at the battle. They could cover more ground and often acted as a vanguard, tying down enemy forces until their foot-bound brethren could arrive.
In the late 1800s, cyclists took on challenges to prove their worth in battle. Bicycle infantry covered 40 miles a day with all their gear to prove they were more mobile, and messenger cyclists raced other signal soldiers working with flags and torches to prove who was faster. The cyclists won most of the competitions, and one messenger unit delivered from Washington, D.C. to Denver in just six days, covering approximately 1,700 miles while climbing 5,000 feet in altitude.
By the time Archduke Franz Ferdinand was assassinated in 1914—coincidentally on June 28, the same day that the 12th Tour de France began—cyclists were an accepted part of warfare.
Related: How the Assassination of Franz Ferdinand Sparked World War I
As the Great War got underway, Allied governments rushed to increase the size of their cyclists corps. Reconnaissance cyclist John Parr, a 17-year-old who had lied about his age to join, was possibly Britain’s first casualty of the war, taking fire from German troops while relaying messages.
As the war ground on, Great Britain bought bicycles and trained troops to ride them, famously advertising that “bad teeth” were “no bar” to joining. Bicycle infantry units rode around the front, quickly reinforcing areas that had suffered unsustainable losses from German attacks or plussing up British positions for major attacks. Cyclists mounted coastal patrols and fought fires in areas raided by German aircraft.
And cyclists were added to standard units, with even conventional infantry units getting a few cyclists to ride ahead and get orders, relaying them back to the unit so it could deploy effectively as it arrived. Eventually, artillery units got cyclists, and some even experimented with towing the guns, especially machine guns, behind the bicycles. (This was one job that bikes weren’t great for. Just watch a dad huffing and puffing away while towing their kid—then imagine the kid weighs hundreds of pounds.)
By the end of World War I, hundreds of thousands of troops were serving in bicycle units or roles, but the increasing role of the automobile threatened their continued use in warfare. Italy even equipped their elite marksmen, the Bianchi, with the bicycle so they could strike faster.
After all, many of the bike’s advantages over walking or horseback riding—the speed and the efficiency; no animal to care for and feed—were also true of the automobiles. And, except for the need for gasoline, the automobile was simply a better tool. It was faster, could carry heavier loads, and it was less draining on the operator’s mind and body.
So, when World War II rolled around, the bicycle took on a smaller role, but it still served, mostly with scouts and the occasional military maneuver. Britain actually created a special bicycle for paratroopers, but then got larger gliders that could carry Jeeps before D-Day, so the bikes went ashore with Canadian soldiers and others instead of paratroopers.
Related: 10 World War I Novels That Shed New Light on the Conflict
Bicycle-mounted troops were key for many counterattacks or quick movements, especially where supply lines were long, or the demand for fuel for tanks was high. The fuel problems of Germany led to a greater concentration of bicycles in their units while the Allies, with better logistics and greater natural resources, relied more heavily on vehicles.
After World War II, some European militaries continued to employ these two-wheeled vehicles for reconnaissance and even anti-tank roles. Switzerland even kept its bicycle units around until 2001, nearly a century after standing up their first bicycle unit.
Today, bicycles enjoy a very limited role in special operations and espionage. U.S. operators even used bikes in Iraq and Afghanistan. But don’t expect a sudden increase in bicycle operations unless more guerrilla forces embrace them. A modern military is more likely to increase mobility with helicopters and armored vehicles. And, if necessary, electric motorcycles would provide much of the stealth of bicycles and even better mobility without wearing out the rider.
More from We Are the Mighty
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- Motorcycle soldiers used to rush parts to tanks under fire
This article originally appeared on We Are the Mighty.