Counterespionage agcy. of W.W. II (3 letters)

{ Answer }

OSS

{ Related Clues }

C.I.A. forerunner
C.I.A. predecessor
C.I.A.'s parent
Clandestine initials
Donovan's org.
Forerunner of the C.I.A.
W.W. II agcy.
W.W. II agency
W.W. II org.
1940's spy org.
Covert W.W. II grp.
Ladd film: 1946
Old spy grp.
Pre-C.I.A. agcy.
W.W. II intelligence org.
W.W. II spy org.
Alan Ladd film: 1946
W. W. II group
W. W. II initials
Wild Bill Donovan's gp.
Wild Bill Donovan's org.

{ Tags }

agcy, agency, bill, cia, cias, dagger, donovans, forerunner, gp, grp, hush, intelligence, old, org, oss, predecessor, spy, w, wild, wwii, 1946

{ Notes }

The answer OSS is seen frequently, appearing about once every 90 puzzles.