Staff Sergeant Reckless
Sergeant Reckless: The Heroic War Horse of the Korean War

Sergeant Reckless' story stands as one of the most extraordinary and heartwarming tales to emerge from the Korean War. This small Mongolian mare, originally named Ah Chim Hai ("Morning Flame"), was purchased in 1952 by U.S. Marines in Korea for $250. The money went to a young stable boy who needed funds to buy a prosthetic leg for his sister.
Trained to carry ammunition for the Recoilless Rifle Platoon, Reckless faced perilous conditions, including steep terrain and minefields. She quickly memorized supply routes and often made solo trips to the front lines, transporting 75mm shells and other supplies. Her most legendary feat occurred during the Battle for Outpost Vegas in March 1953, when she made 51 solo trips in a single day, delivering nearly five tons of ammunition under heavy enemy fire.
Beyond her logistical contributions, Reckless also evacuated wounded Marines and demonstrated remarkable battlefield instincts, such as crouching in foxholes and running for cover when under fire—skills she was trained to perform like a seasoned soldier.
Her bravery did not go unnoticed. Reckless was wounded twice in combat and received two Purple Hearts, along with several other military decorations. She was promoted to Sergeant and later to Staff Sergeant, becoming one of the few animals in U.S. history to hold official military rank.
After the war, Reckless was brought to the United States, where she was celebrated in publications like LIFE magazine and honored with monuments, including one at the National Museum of the Marine Corps.
Sergeant Reckless' legacy is a powerful reminder of courage, loyalty, and the unexpected heroes who emerge in times of war.
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