Reuters/Jorge Intriago/Courtesy Air National Guard/Handout Helicopters have taken on all kinds of roles since their introduction during the Korean War. But they've proven to be especially useful, and particularly deadly, as gunships Since rotary-wing aircraft were introduced during the Korean War, they've proved their utility in a bunch of mission areas like troop transport, reconnaissance, vertical replenishment, and Medevac. But perhaps no other capability has changed the dynamic on the battlefield as much as the use of helicopters as attack platforms. Here are...