In 1945, during the final stages of World War II, Iraq joined the United Nations and became a founding member of the Arab League. In 1948, massive violent protests, known as the Al-Wathbah uprising, broke out across Baghdad as a popular demand against the government treaty with the British, and with communist party support. More protests continued in spring, but were interrupted in May, with the martial law, when Iraq entered the 1948 Arab–Israeli War along with other members of the Arab League.