北洋軍閥
The military power of the Republic of China was inherited from the New Army, mainly the Beiyang Army, which later split into many factions and attacked each other. The National Revolutionary Army was established by Sun Yat-sen in 1925 in Guangdong with the goal of reunifying China under the Kuomintang. Originally organized with Soviet aid as a means for the KMT to unify China against warlordism, the National Revolutionary Army fought many major engagements: in the Northern Expedition against Beiyang Army warlords, in the Second Sino-Japanese War against the Imperial Japanese Army, and in the Chinese Civil War against the People's Liberation Army.