An O-9 officer in the United States military is a lieutenant general in the Army, Air Force, or Marine Corps, or a vice admiral in the Navy or Coast Guard. This rank typically involves commanding large units, such as a corps or fleet, and requires extensive experience and Senate confirmation.
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What are all the officer ranks in the US military? Can you give me a list?
US military officer ranks are standardized across branches, with O-grades from O-1 to O-10. Pay grades align, but titles vary. Here's the full list:
O-1: Second Lieutenant (Army, Air Force, Marines) / Ensign (Navy, Coast Guard)
O-2: First Lieutenant (Army, Air Force, Marines) / Lieutenant Junior Grade (Navy, Coast Guard)
O-3: Captain (Army, Air Force, Marines) / Lieutenant (Navy, Coast Guard)
O-4: Major (Army, Air Force, Marines) / Lieutenant Commander (Navy, Coast Guard)
O-5: Lieutenant Colonel (Army, Air Force, Marines) / Commander (Navy, Coast Guard)
O-6: Colonel (Army, Air Force, Marines) / Captain (Navy, Coast Guard)
O-7: Brigadier General (Army, Air Force, Marines) / Rear Admiral Lower Half (Navy, Coast Guard)
O-8: Major General (Army, Air Force, Marines) / Rear Admiral Upper Half (Navy, Coast Guard)
O-9: Lieutenant General (Army, Air Force, Marines) / Vice Admiral (Navy, Coast Guard)
O-10: General (Army, Air Force, Marines) / Admiral (Navy, Coast Guard)
Special: General of the Army/Air Force (wartime, Army/Air Force only) / Fleet Admiral (Navy, WWII only)