The rise of the Nazi Party to power in Germany in 1933 and the annihilation of the organized communist movement there shocked the Comintern into reassessing the tactics of the Third Period. From 1934, new alliances began to be formed under the aegis of the so-called "Popular Front." The Popular Front policy was formalized as the official policy of the world communist movement by the Seventh World Congress of the Comintern in 1935.