Answer:

dogface

Answer	Crossword Clue
DOGFACE	WWII soldier, in slang
DOGFACE	G.I., in old slang
DOGFACE	WWII soldier

DOGFACE	WWII GI
DOGFACE	Infantryman: Slang.
DOGFACE	Grunt : Vietnam :: ... : W.W. II
DOGFACE	World War II soldier

Crossword

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