Related Clues:
- European defense assn.
- Noted Santa tracker
- Org. with troops
- Mil. alliance since 1949
- 26-member defense gp.
- Belgium-based gp.
- Intl. peacekeeping gp.
- Warsaw Pact counterpart
- US alliance
- It has ports in Port.
- Western alliance: Abbr.
- Its members include Canada and Luxembourg
- US/Canada security system
- Pact acronym
- Defense grp. that includes the U.S.