Related Clues:
- Group with a secy. gen.
- Postwar alliance
- Peacekeepers' org.
- Gp. with 26 nations
- 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
- Mysterious, as some old inscriptions
- Alliance that includes the U.S.