Related Clues:
- Collective defense org.
- Intl. group since 1949
- Croatia joined it in '09
- It now includes Lat. and Lith.
- Partnership for Peace gp.
- Brussels-based intl. alliance
- 1949-born org.
- Western mil. alliance
- European defense grp.
- Intl. group whose initials in English and French are reversed
- Acronymic alliance
- Security org. with bombers
- Alliance est. 1949
- Its first leader was Lord Ismay, 1952-1957
- Defense gp. formed in 1949