There have been several battles in the region. The Sinai has been under the rule by Egyptian governments, including the Ayyubids, the Mamluks, the Muhammad Ali Dynasty, and the modern Egyptian republic. It was also controlled by the Ottoman Empire, and the United Kingdom from 1882 to 1956. Israel invaded and took over Sinai during the 1956 Suez Crisis (known in Egypt as the Tripartite Aggression) and during the 1967 Six Day War. On October 6, 1973, Egypt began the October War to allow the Sinai to be a free nation.