Israel re-iterated that the Straits of Tiran closure was a Casus belli. This prompted the beginning of the Third Arab Israeli War (Six-Day War) in which Israel attacked Egypt, and occupied Sinai Peninsula and the Gaza Strip, which Egypt had occupied since the 1948 Arab–Israeli War. During the 1967 war, an Emergency Law was enacted, and remained in effect until 2012, with the exception of an 18-month break in 1980/81. Under this law, police powers were extended, constitutional rights suspended and censorship legalised.