在1894～1895年中日甲午战争及1904～1905年日俄战争中取胜后,日本开始跻身世界海上强国。尤其是在1905年5月27日的对马海战中,由东乡平八郎率领的日本海军联合舰队以较小的代价取得了压倒性胜利,以实战的方式证明了当时历史条件下西方“巨舰大炮”理论。日本为了进一步增强其海上实力,于1905年制定了“帝国国防方针”和“用兵纲领”,并在1909年形成了“八·八舰 After winning the Sino-Japanese War of 1894-1895 and the Russo-Japanese War of 1904-1905, Japan began to rank among the world’s maritime powers. Especially in the May-to-May war of May 27, 1905, the Japanese navy united fleet led by Togo Hirataro made an overwhelming victory at a small cost and proved in actual combat that at that time, the Western “giant ship artillery ”theory. In order to further enhance its maritime strength, Japan enacted the “Guide for Empire Defense” and the “Guide for the Use of Military Weapons” in 1905 and in 1909 formed the "