Answer:

apo

Answer	Crossword Clue
APO	GI address
APO	Mil. address
APO	Cpl's mailbox

APO	E-1's addr:
APO	G.I.'s address
APO	Overseas addr.
APO	PFC's address
APO	Where to write a GI
APO	GI's address
APO	NCO's address
APO	GI's addr.

APO	Military addr.
APO	Military address (abbr.)
APO	Mil. mail address
APO	Part of a GI's address
APO	Part of a mil. address
APO	G.I.'s mailing address
APO	Part of GI's mailing address
APO	Part of a G.I.'s address

APO	Place for mil. letters
APO	Mil. mail letters
APO	GI mail drop
APO	Mil. mail depot
APO	Mil. mail drop
APO	V-mail handler
APO	GI mail service
APO	Pvt.'s address

APO	G.I. Joe's address?
APO	G.I.'s mail drop
APO	Mil. mailroom
APO	GI's mail address
APO	Mil. mail site
APO	Sgt.'s address
APO	Letters on letters to GIs
APO	Mil. drop site

APO	Private address?
APO	Place for a GI's mail (abbr.)
APO	Pt. of a G.I.'s address
APO	Place for a GI's mail
APO	GI's mail drop

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.