First General Army - Japan - ended in 1945.
Thirty-First Army - Japan - was created in 1944.
Forty-First Army - Japan - was created in 1944.
Third Army - Japan - was created in 1904.
Fortieth Army - Japan - was created in 1945.
Fiftieth Army - Japan - was created in 1945.
Taiwan Army of Japan was created in 1919.
Fourth Army - Japan - was created in 1904.
Nineteenth Army - Japan - was created in 1942.
Twentieth Army - Japan - was created in 1941.
Eighteenth Army - Japan - was created in 1942.
Fifteenth Army - Japan - was created in 1941.