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 a rank of "Da Jiang" () from 1955 to 1965. Da Jiang corresponded to the Soviet rank of colonel general. The rank system of the People's Liberation Army was abolished in 1965 and restored in 1988. The 1988 system introduced a rank of Yi Ji Shang Jiang (). No one had held such rank and it was abolished in 1994. The rank of colonel general ("generálplukovník") was created in the Czechoslovak army in 1950; it was dropped after the 1993 dissolution of the state. The Egyptian Army uses a rank that translates as "colonel general". It is equal to the