|At the end of World War II, Austria was occupied by the four powers. In 1946 the four powers officially recognized Austria within its 1937 frontiers. The Austrians were granted a large degree of autonomy. On May 15th 1955, a four-power Foreign Ministers' conference in Vienna agreed on a peace treaty with Austria. It called for withdrawal of all foreign troops from Austrian soil. The agreement was designed to insure Austrian neutrality.