Crossword Clue:

Abbr on a letter to a soldier

AnswerCrossword Clue
APOAbbr. on a letter to a soldier
APOAbbr. on mail to a soldier
SRTAAbbr. on a letter to Spain
MMEAbbr. on a letter to Paris, maybe
NYSLine on a letter to Andrew Cuomo: Abbr.
STEAbbr. on a letter to an office building
STEAbbr. on a letter to an office complex