Imperial Japanese Army

, also known as the IJA, was the army of Imperial Japan from 1868 to 1945. The army was under the command of Emperor Meiji from 1868-1912, Emperor Taishō from 1912-1926 and Emperor Hirohito from 1926-1945 .
The IJA was started after the Meiji Restoration in 1868, replacing the Samurai. It was abolished at the end of World War II in 1945. 
The army was involved in many Wars : Boshin War (1868-1869) Invasion Of Taiwan (1874) Shinpuren Rebellion (1876) Satsuma Rebellion (1877) First Sino-Japanese War (1894-1895) Invasion Of Taiwan (1895) Boxer Rebellion (1899-1901) Russo-Japanese War (1904-1905) World War 1 (1914-1918) Siberian Intervention (1918-1922) Japanese Invasion Of Manchuria (1931) Soviet-Japanese Border Conflict (1932-1939) Second Sino-Japanese War (1937-1945) Battle of Khalkhin Gol (1939) World War 2 (1941-1945) . 
Legacy.
Article 9 of the Constitution of Japan prohibits the use of aggressive force as a means for settling international disputes.
In order to defend Japan, if necessary, the Japan Self-Defense Forces (JSDF) was formed.
The ground-reach of JSDF is the Japan Ground Self-Defense Force (JGSDF).