"Aircraft are flying vehicles used for combat, transport, or utility purposes. The first planes were made in the early twentieth century, and first saw combat in the Second World War. Typically less armored than ground vehicles, they are immune to most enemy fire when airborne, but units that are capable of anti-aircraft fire are easily capable of shooting them down. It is where aircraft technology development has taken a radically different path..."@en . . "Aircraft are flying vehicles used for combat, transport, or utility purposes. The first planes were made in the early twentieth century, and first saw combat in the Second World War. Typically less armored than ground vehicles, they are immune to most enemy fire when airborne, but units that are capable of anti-aircraft fire are easily capable of shooting them down. It is where aircraft technology development has taken a radically different path..."@en . . . . . "Aircraft (Red Alert)"@en . . .