U.S. Army Officer Rank Structure

Second Lieutenant / 2LT / O1

First Lieutenant / 1LT / O2

Captain / CPT / O3

Major / MAJ / O4

Lieutenant Colonel / LTC / O5

Colonel / COL / O6

Brigadier General / BG / O7

Major General / MG / O8

Lieutenant General / LTG / O9

General / GEN / O10

General of the Army / GOA

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