13th Horse on the March
Some 90 years ago today.
Fort Riley, Kansas, 29 June 1936.
The 13th U.S. Cavalry Regiment is seen returning to garrison from its last march as a horse cavalry outfit before shipping off their mounts, trading horse shoes and oats for tires and tracks. The regiment’s colonel at the time was Charles “Lutie” Lewis Scott (USMA 1905), a noted horseman, prominent in the Cavalry Branch as a across an array of organized horse shows, polo matches, fox hunting, and endurance races.

Note, they are outfitted in marching order, complete with gun belts and M1911s. U.S. Signal Corps Photo 111-SC-108064, National Archives Identifier 523751061
The 13th Cavalry Regiment was first constituted on Groundhog’s Day 1901 with its first unit, Troop K, standing up at Fort Meade, South Dakota, on 26 July of the same year.
Spending much of its early years in the Philippines on counter-insurgency operations, the 13th Horse then shifted gears to police the border with Mexico from 1911 through 1916, which included pursuing Mexican outlaw Pascual Orozco.
With about 350 men (four Troops and the MG Troop) already stationed at “Cavalry Camp” in Columbus, New Mexico, they were on hand to repulse Pancho Villa’s raid on the border town that left the unit with 14 casualties versus 100~ suffered by the Villaristas in a 90-minute firefight, which led to Blackjack Pershing’s Punitive Expedition to chase old Panch into the Chihuahua desert.
Retiring from the border in 1921 after missing out on going “Over There,” with the rest of the Doughboys to France in the Great War, the horse soldiers helped film several early western movies, including “The Pony Express” in 1925 and “His First Command” in 1929.
They also notably conducted a 625-mile march from Fort D.A. Russell (now Francis E. Warren AFB, west of Cheyanne, Wyoming) to Fort Riley in good order over 30 days, carrying all their own supplies and bivouacking in the field long before there were interstates and rest stops.
The regulars of the 13th started to receive their first trucks and motorcycles in 1927, in the slow decade-long transition to becoming a mechanized unit.
Leaving Ft Riley, they were assigned to the 7th Cavalry Brigade (Mechanized) at Fort Knox and began to receive the brand-new M1 Combat Car in 1937.

Thompson submachine gun mounted on a Harley flathead motorcycle of the HHC Troop, 13th Cavalry Regiment, August 1938, at Fort Knox, Kentucky. Note the early round “Old Ironsides” sleeve patch and the riding boots. 111-SC-108934
By 1940, re-badged as the 13th Armored Regiment (Light), they had an allowance for 82 M3 Scout Cars and 136 M3 Stuart Light Tanks, tasked with armored recon, and would soon be receiving M3 (Lee) medium tanks.
Shipping out with the “Old Ironsides” of the 1st Armored Division, the 13th landed in North Africa for Torch in November 1942, went on to lock horns and learn from the Afrika Korps the hard way in Tunisia. They saw their first major combat since 1916 at the Battle of Kasserine Pass, which was one tough proving ground for American armor.

M3 medium tank crew from Company F, 13th Armored Regiment, displays assorted 75mm ammunition. North Africa, 1942-43. Rounds from left to right are 75mm APCBC-HE-Ta shell M61, 75mm AP-T shot M72, and 75mm HE shell M48. Signal Corps 167328 via NARA.
The unit then traded its M3 Stuarts for M5s and M3 Lees for M4 Shermans to land in Europe for the invasion of Italy in November 1943. They pushed all the way up the Italian “boot,” ending the war nearly at the Swiss border, and earned seven battle streamers: Algeria-French Morocco (with arrowhead), Tunisia, Naples-Foggia, Anzio, Rome-Arno, North Apennines, and Po Valley.
Then came occupation duty as the 13th Constabulary Squadron (which ironically included some horses), Cold War reorganization, activation, and inactivation until the 1st Battalion, 13th Armor (1-13 Armor), was stood back up on 16 February 1996 at Fort Riley, Kansas, and assigned once again to the 1st Armored Division. Of note, it had been nearly 60 years on the nose since the unit had hung up its horses at that very base to switch to tracks.
Since then, they have been overseas again to South Korea, Bosnia, Iraq, and Afghanistan, and today the only active Squadron, 2-13 Armor, is the armored recon unit for Old Ironsides’ 3rd Brigade, and is based at Fort Bliss. They ride Bradleys and Abrams.
Their motto is “It Shall Be Done,” and they are still nicknamed the 13th Horse.


