However it was instead incorporated as the Western Samoa Trust Territory under British administration from 1920 -- 1946 and New Zealand administration from then until 1962 .
In 1919 , Western Samoa desired to unite with American Samoa , as already stated in Paris .
Western Samoa was instead incorporated as the Western Samoa Trust Territory under British administration from 1920 -- 1946 and New Zealand administration from then until 1962 .
In 1919 , Western Samoa desired to unite with American Samoa , as already stated in Paris .