‘Buffalo Soldiers’ was a term applied to Black units in the US army.
Whilst it became a generic term for African-American troops in the US Army, the origins of it are somewhat obscure. It was originally applied to the 10th Cavalry raised in 1866, mainly of escaped and/or emancipated slaves taken into military service.
What isn’t in doubt is that the term was coined by Cheyenne warriors who were likening the soldiers black, curly hair to that of the buffalo; however, another version refers to a Private John Randall of the 10th who was assigned to provide an escort for two civilian hunters during a trip to Montana in 1867. At one point during the trip, the hunters were attacked by a large Cheyenne war party. Whilst the two hunters died almost immediately, Randal escaped and kept his attackers at bay with his single pistol until help arrived from a nearby camp. Randal survived despite a pistol shot to the shoulder and 11 lance wounds. Cheyenne warriors later reported that he had “fought like a buffalo”, and the name may come from that.
The bicycle has been used in conflict almost since it was invented. It is credited as being the only thing that allowedthe North Vietnamese army to keep the Ho Chi Minh trail open during the Vietnam war, and allowed Japanese troops during WW2 to advance quickly through difficult terrain in Thailand and Burma, whislt carrying heavy loads.