Ukraine Invasion History History of Russian & Ukraine 1 Why Ukraine once the third-largest nuclear power gave up its nuclear weapons. 1 History lesson (from a Romanian analyst) 1 The role of paratroopers in Russian military doctrine 1 Since WWII there were only three cases when Russian paratroopers were actually dropped on the enemy from the air: Hungary 1956, Czechoslovakia 1968, Ukraine 2022. Ergo, paratroopers act as paratroopers only when they don't expect resistance from another ...