Proper noun
SEATO
(historical) Initialism of Southeast Asia Treaty Organization, in existence from 1955 to 1977.
Holt Government main Prime Minister Harold Holt (second from left), with SEATO leaders in Manila, in 1966. Source: Internet
In 1965, de Gaulle pulled France out of SEATO, the southeast Asian equivalent of NATO and refused to participate in any future NATO maneuvers. Source: Internet
The resolution gave congressional approval for use of military force by the commander-in-chief to repel future attacks and also to assist members of SEATO requesting assistance. Source: Internet
To strengthen defense ties with countries in the Asia Pacific region, the Menzies government signed the South East Asia Collective Defence Treaty (SEATO) as a South East Asian counterpart to NATO. Source: Internet
Washington encouraged its SEATO allies to contribute troops. Source: Internet