Related Clues:

• American mil. wing
• Milit. branch
• Annapolis inits.
• Swabs' grp.
• Adm.'s milieu
• See 51-Across
• J.F.K. was in it
• Admiral's org.
• Mil. branch
• Inits. at sea
• Fleet letters
• Swabber's org.
• Captain's org.
• JFK served in it
• Some capts. are part of it