The term ace was stablished during WW1 to a pilot that is credited with the shotdown of 5 enemy aicraft.
[citation needed] The concept of aces emerged in 1915 during World War I.
1956–1970 Russian invasion of Ukraine Ace of the Deep is a title accorded to the top subsea ace/undersea ace/submarine ace of a nation's submarine force during time of war.
[citation needed] A "tank ace" or Panzer ace has been described by Historian Robert Kershaw as being the minority of tank commanders that accounted for the most destroyed enemy armor, saying it is roughly analogous with a flying ace.
He returned to service quickly and was officially declared missing in action on March 18, 1945, after having been left behind while wounded in Söréd.