 On 26 May Nasser declared, "The battle will be a general one and our basic objective will be to destroy Israel".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.