Lt. John G. Rosta is shown on this 1943 photo on horseback in North Africa... He was an electrical engineer with the Army Air Corps, not in the cavalry. I guess he tried it out for fun. Too late to ask, for he passed away in 2008.

Lt. Rosta on a horseback

Crew of U.S. Army Air Force First Lieutenant James Muri's B-26, who made a torpedo attack on a Japanese aircraft carrier during the early morning of 4 June 1942. The plane had more than 500 bullet holes when it landed at Midway following this action.1st. Lt. Muri is second from left, in the front row.(rudeerude)

Battle of Midway

"Life" 'photo of a member of the Women's Air Corps (WAC), USA.  Best regards, JR.