President Vincent became increasingly dictatorial, and resigned under US pressure in 1941, being replaced by Élie Lescot (1941–46). In 1941, during the Second World War, Lescot declared war on Japan (8 December), Germany (12 December), Italy (12 December), Bulgaria (24 December), Hungary (24 December) and Romania (24 December). Out of these six Axis countries, only Romania reciprocated, declaring war on Haiti on the same day (24 December 1941). On 27 September 1945, Haiti became a founding member of the United Nations (the successor to the League of Nations, of which Haiti was also a founding member).