OAS
3 letters
Historical clue formulations
- Western Hemisphere grp. — 2025-06-13
- Alliance since 1948, in brief — 2025-03-09
- Intl. alliance that includes Canada and Costa Rica — 2024-07-14
- Western Hemisphere grp. since 1948 — 2024-06-09
- Western treaty grp. — 2023-09-04
- Western Hemisphere treaty grp. — 2023-01-29
- Western Hemisphere grp. — 2022-03-27
- Grp. that extends from Canada to Chile — 2021-11-22
- Western treaty grp. — 2021-06-02
- Defense grp. since 1948 — 2020-12-02
- Western Hemisphere grp. — 2020-01-05
- Western Hemisphere grp. — 2018-09-05
- Western Hemisphere grp. — 2017-10-25
- Intl. group headquartered in D.C. — 2017-10-17
- 35-nation alliance, briefly — 2017-02-12
- W. Hemisphere alliance — 2016-11-21
- Hemispheric grp. — 2015-03-27
- Defense grp. since 1948 — 2015-01-21
- Western Hemisphere treaty grp. — 2014-10-06
- D.C.-based intercontinental grp. — 2014-07-25
- Defense grp. founded in Bogotá — 2014-05-13
- Alliance HQ'd near the White House — 2014-02-27
- Grp. that suspended Honduras from 2009 to '11 — 2014-02-15
- Western treaty grp. — 2013-10-16
- Western treaty grp. — 2013-08-14
- Grp. that suspended Honduras in 2009 — 2013-01-15
- W. Hemisphere alliance — 2012-12-09
- Mex. and Uru. are in it — 2012-08-25
- Alliance created in '48 — 2012-08-23
- Western alliance, for short — 2012-05-08
- Peace grp. since 1948 — 2011-10-26
- W. Hemisphere grp. — 2011-10-23
- W. Hemisphere alliance — 2011-10-03
- W. Hemisphere alliance — 2011-08-15
- Western treaty grp. — 2011-06-09
- Post-W.W. II alliance — 2011-05-03
- International grp. since 1948 — 2010-07-18
- Western defense grp. — 2010-06-08
- Charter of Punta del Este grp. — 2010-02-13
- Intl. group with 35 members — 2009-03-13
- Western treaty grp. — 2009-02-02
- Grp. formed in Bogotá in 1948 — 2008-12-20
- Western treaty grp. — 2008-10-23
- Grp. that includes Canada and Colombia — 2008-10-12
- Western treaty grp. — 2008-08-11
- Group west of the Atlantic: Abbr. — 2008-01-06
- Western treaty grp. — 2007-07-25
- West. alliance — 2006-12-13
- Western treaty grp. — 2006-10-09
- Intl. assn. since 1948 — 2006-09-21