Army Mules - 1898 was released on:
USA: July 1898
With the Army at Tampa - 1898 was released on: USA: April 1898
Letterman Army Hospital was created in 1898.
Second Army Corps was created in 1898.
There is nothing bad about mules. The only disadvantage is that they are sterile. In all other respects they are vastly superior to horses or donkeys (this includes strength, durability, food intake and intelligence). No army that used mules has ever lost a war.
The Microbe Army - 1935 was released on: USA: 1935
The Army Behind the Army Rations - 2014 was released on: USA: January 2014
Army Mail The Army Behind the Army - 2013 was released on: USA: 5 November 2013
Army of None - 2014 was released on: USA: December 2014
With the Japanese Army - 1913 was released on: USA: March 1913
The US Army has used mules in lieu of horses, and to supplement horses since the 1800s. US Cavalrymen rode them, Artillery Caissons (ammo carrying wagons) were pulled by them. The US Army mascot is the mule. During the Second World War in the Burma Theater the US Army and the British Chindits employed mules as pack carriers for a variety of purposes ; see link below to Merrill's Marauders .
Royal Army Medical Corps was created in 1898.
Touchdown Army - 1938 was released on: USA: 7 October 1938