History of the Office of The Inspector General of the United States Army (IG January 10, 1863April 1, 1864; January 2, 1881March 8, 1885) was assigned as the "de facto" head of the Office of the Inspector General, which, until then had not existed. 2 major generals, 7 brigadier generals, 18 colonels, 118 lieutenant colonels, and 149 majors of the regular army served inspector duty during the Civil War. On January 22, 1866, a War Department order established the duties of the inspector general as: In July 1866, the number of inspectors general with the rank of colonel was fixed at four; assistant inspectors general with the rank of lieutenant colonel at three;
Colonel general Colonel general Colonel general is a three or four-star rank in some armies, usually equivalent to that of a full general in other armies. North Korea and Russian Federation have used the rank in that fashion throughout their histories. The rank is also closely associated with Germany, where "Generaloberst" has formerly been a higher rank above full "General" but below "Generalfeldmarschall". Colonel general ("Generaloberst") was the second-highest rank in the Austro-Hungarian Army, introduced following the German model in 1915. The rank was not used after World War I in the Austrian Army of the Republic. The People's Liberation Army had