 Defeat in World War II led to the loss of the entire Italian Colonial Empire (including colonies that had not been conquered by the Fascist government (such as Libya)) among other territorial losses as stipulated in the Treaty of Peace with Italy, 1947.Post-war Italy adopted a republican constitution and became one of the founding members of the Western Bloc military alliance NATO (North Atlantic Treaty Organization) that was formed 4 April 1949 and remains a member as of 2019.In 1982 Italian forces were deployed to Lebanon (then racked by the Lebanese Civil War) together with American and French troops as the Multinational Force in Lebanon.