What was the first military aviation unit to use an unpowered precision guided munition in a war that involved more than 100 million people from over 30 countries?
Kampfgeschwader 100: "Kampfgeschwader" 100 (KG 100) was a Luftwaffe medium and heavy bomber wing of World War II, and the first military aviation unit to use an unpowered precision-guided munition in combat to sink a warship on 9 September 1943 with the destruction of the  , in the first successful use of the Fritz X armor-piercing, gravity PGM ordnance. World War II:  It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries.
Luftwaffe