1943年,在中国人民抗日战争和同盟国军队的沉重打击下,日本帝国主义陷入全面败退的困境。在太平洋战场,美军在取得中途岛和瓜达尔卡纳尔岛战役的胜利后,开始发动全面反攻,先后占领了阿留申群岛、所罗门群岛、吉尔伯特群岛、新几内亚岛等地区。1944年起,美军又占领了日本在中太平洋地区的重要海空基地马绍尔群岛和特鲁克群岛,开始从中太平洋和西南太平洋 In 1943, under the heavy blow of the Chinese People’s War of Resistance Against Japanese Aggression and the Allied Armies, Japanese imperialism was plunged into a plight full of retreat. In the battlefield of the Pacific Ocean, the U.S. military started a full-scale counterattack after winning the battle of Midway and Guadalcanal Islands and successively occupied the Aleutian Islands, Solomon Islands, Gilbert Islands and New Guinea. Since 1944, the U.S. military has also occupied Japan in the Marshall Islands and the Trourks, important air and sea bases in the Central Pacific region, starting from the Central Pacific and the Southwest Pacific