Army Officer Ranks and Their Insignia. Second Lieutenant (2LT)(O1) ... Addressed as lieutenant colonel or colonel. Typically commands battalion-sized units (300-1,000 soldiers), ...

Marine Corps ranks for officers are split into two tiers: officer and general. Commissioned officers do not enlist. They serve indefinitely at the pleasure of the president of the United States.

Since May, sailors have purchased 276,000 black Navy rank tabs, nearly 20,000 per week, she said. The exchange command has 59,000 black rank tabs in stock with 69,000 on order, Sturkie said.

Army ROTC Battalion Commander Maj. Edward Whitaker was recently promoted to the rank of lieutenant colonel at a ceremony at RIT on Oct. 27. Lt. Col. Michael Bianchi, professor of military science at ...