Original sentence: The Israeli occupation of the Sinai Peninsula was a 15-year military occupation established in the aftermath of the 1967 Six Day War, a war in which Israel captured the peninsula and subsequently retained its forces in the region, and ended in 1982 after the implementation of the 1979 Israel–Egypt Peace Treaty
Edited sentence: The Israeli occupation of the Sinai Peninsula was a 15-year military occupation established after Israel invaded Egypt during the 1967 Six Day War and subsequently retained its forces in the region, and ended in 1982 after the implementation of the 1979 Israel–Egypt Peace Treaty