Answer: dogtags

AnswerCrossword Clue
DOGTAGS

Private IDs

DOGTAGS

GI ID

DOGTAGS

Some military IDs

DOGTAGS
Canine collar attachments
DOGTAGS
Soldiers' means of identification
DOGTAGSSoldiers' IDs
DOGTAGSThey're worn in pairs
DOGTAGSSoldiers' identifications.
DOGTAGSNeckwear for G. I.'s.
DOGTAGSCertain neckwear: Slang.
DOGTAGSG.I. neckpieces.
DOGTAGSCertain labels
DOGTAGSCanine IDs
DOGTAGSSoldier IDs
DOGTAGSGI wear
DOGTAGSPrivate labels?
DOGTAGSTroop IDs
DOGTAGSCompany identifiers
DOGTAGSPrivate identification