1952年2月,新政俱乐部、国民民主党、农民协同党联合组成改进党。该党的政策大纲明确主张“创建适应民力的民主性自卫军,尽快将安全保障条约改为相互防卫条约”,“全面地重新研究占领下的各项法令穴包括宪法雪、各项制度”及尽早归还“库页岛、千岛、冲绳、奄美大岛、小笠原群? In February 1952, the New Deal Club, National Democrats and Peasants’ Syndicates jointly formed the Progress Party. The party’s policy outline clearly states that “the establishment of a democratic self-defense force adapted to the civilian force should be changed to a mutual defense treaty as soon as possible” and “a comprehensive re-examination of various decree points under the occupation, including the constitutional snow system and various systems” and Early return "Sakhalin, Kuril, Okinawa, Amami Oshima, Ogasawara group?