Operation Castor
November 20–22, 1953 · Điện Biên Phủ
Result Successful establishment of the Dien Bien Phu outpost by the French Union
French paratroopers dropped into the valley of Điện Biên Phủ and set up a fortified airhead against the Viet Minh. It set the stage for the siege of Dien Bien Phu.
