From 1975 to 1979, the U.S. abstained on all the United Nations resolutions concerning Belize’s independence, sovereignty and territorial integrity. Finally, in 1980, it changed its policy of neutrality and voted in favour of the U.N. resolution that called for the independence of Belize. This resolution was adopted in November 1980. It demanded the secure independence of Belize, with all its territory, before the next session of the U.N. in 1981. It called on Britain to continue to defend Belize, and on all countries to come to its assistance. One hundred and thirty-nine countries voted in favour of the resolution, with seven abstentions and none against. Guatemala refused to vote.
That same year, the Organization of American States (OAS) fully endorsed the U.N. resolution. This was an important victory, because until then the OAS had supported Guatemala.