The founder of the center-right Likud Party, the former Prime Minister became, in 1977, the first premier from a right-wing party. He negotiated agreements with Egypt, and in 1979 and signed Israel’s first peace treaty with an Arab neighbor. In his earlier years, Begin headed the Irgun, a right-wing military organization that targeted the Arabs and British. As Prime Minister, he was adamant not to return West Bank territory to another sovereignty.