Related Clues:
- Western union
- Kosovo War force
- Big mil. alliance
- U.S./European force
- Defense org. established in 1949
- Intl. group
- Org. with peace-keeping forces
- Defense-alliance acronym
- 59-yr.-old alliance
- Alliance that includes the U.S.
- Org. implicated in some 9/11 conspiracy theories
- Belg.-based peacekeepers
- "WarGames" org.
- Euro watchdog
- Peacekeeping org. since 1949