Related Clues:
- Western defense assn.
- Allied org.
- Bulg. and Lith. joined it in 2004
- Intl. defense org.
- One side in the cold war
- It began in H.S.T.'s administration
- 19-nation gp.
- Grp. that includes the U.S.
- Warsaw Pact's Cold War opponent
- Defense org.
- Grp. that outlasted the Warsaw Pact
- Alliance founded in 1949
- Peace-keeping org.
- Peacekeeping gp.
- Alliance since '49