When the Japanese seized Burma in 1942, the British and American missionaries fled, but they returned in 1945. Independence from Britain came in 1947, and for years there was simmering tension and sometimes military action by the government against the Karens. This strengthened the Christian religiosity of the Karens minority, and deepened the hostility of the majority Buddhist population toward Christianity. In 1959 the Catholics numbered 184,000, and Protestants were 225,000; most of the Protestants were Baptists. The Catholics began transferring control from the missionaries to local elements in 1959, with the appointment of the Archbishop of Mandalay who is a descendant of Portuguese who arrived in the 17th century. Likewise, the Protestants transferred control to locals in the 1950s.