Ireland remained neutral during World War II, a period it described as The Emergency. Ireland's Dominion status was terminated with the passage of the Republic of Ireland Act 1948, which came into force on 18 April 1949 and declared that the state was a republic. At the time, a declaration of a republic terminated Commonwealth membership. This rule was changed 10 days after Ireland declared itself a republic, with the London Declaration of 28 April 1949. Ireland did not reapply when the rules were altered to permit republics to join. Later, the Crown of Ireland Act 1542 was repealed in Ireland by the Statute Law Revision (Pre-Union Irish Statutes) Act 1962.