Airborne online graphic t-shirt store. Shop our large inventory of Military Paratrooper tees. A paratrooper is a military parachutist—someone trained to parachute into an operation, and usually functioning as part of an airborne force. Military parachutists, troops and parachutes were first used on a large scale during World War II for troop distribution and transportation. Paratroopers are often used in surprise attacks, to seize strategic objectives such as airfields or bridges. Paratroopers jump out of airplanes and use parachutes to land safely on the ground. This is one of the three types of "forced entry" strategic techniques for entering a theater of war; the other two being by land and by water. Their tactical advantage of entering the battlefield from the air is that they can attack areas not directly accessible by other transport. The ability of air assault to enter the battlefield from any location allows paratroopers to evade emplaced fortifications that guard from attack from a specific direction. The possible use of paratroopers also forces defenders to spread out to protect other areas which would otherwise be safe.