What Does XO Mean in Military? – Military Terms Explained
WebJun 03, 2022 · The XO is the second-in-command and the command staff’s daily manager. Like the XO in the Marines, Army XOs are responsible for managing day-to-day activities, including logistics, maintenance, administration, and strategic planning matters. The XO can fill in when the commander is absent, except for when there is a deputy commander.
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