Encroaching the others' lands. The Night's King, along with the white walkers who manned the walls tried to move the wildlings south of the wall. This didnt fit well with the Wildling leader, who plotted with the stark at winterfell to overthrow the Night's King and remove the white walkers from the wall.
Russia was the first to develop an airplane specifically for this purpose: the Murometz, a large four-engine airplane that Igor Sikorsky had developed in 1913 as a passenger plane, was adapted for use as a bomber in 1914 and was used successfully throughout the war.
1 Turkey â In 1936 Sabiha GÃ¶kÃ§en became one of the world's first female fighter pilots.  Canada â In 1989 Dee Brasseur and Jane Foster became the first female fighter pilots in the Canadian Air Force after qualifying to fly the CF-18 Hornet.