Complex sentence: Petr Kirillovich Koshevoi (December 21,1904-August 30,1976) was appointed Marshal of the Soviet Union in 1968.
Split into simpler sentences: Petr Kirillovich Koshevoi (December 21,1904-August 30,1976) was a Soviet military leader. Koshevoi was appointed Marshal of the Soviet Union in 1968.