Mezue ahịrịokwu na-esonụ: Thant kwupụtara na 1966 na ya agaghị azọ ọkwa ọchịchị nke ugboro abụọ, mana ọ nabatara atụmatụ mgbe Kansụl Nchebe mesiri ya obi ike na ọ gaghị abụ "onye odeakwụkwọ a na-enye otuto". Na Disemba 2, 1966, General Assembly họpụtaghachiri Thant maka oge na-agwụ na Disemba 31, 1971, na nkwenye otu olu nke Security Council. N'oge ọchịchị ya nke abụọ, o lekọtara ntinye nke ọtụtụ mba ọhụrụ nke Asia na Africa na UN, ma bụrụ onye na-emegide ịkpa ókè agbụrụ na South Africa. O guzobekwara ọtụtụ ụlọ ọrụ mmepe na gburugburu ebe obibi nke UN, ego na mmemme, gụnyere UN Development Programme (UNDP), Mahadum UN, Nzukọ United Nations na Azụmaahịa na Mmepe, United Nations Institute for Training and Research (UNITAR), na UN Environmental Programme. Agha ụbọchị isii n'etiti mba Arab na Israel, Prague Spring na mwakpo ndị Soviet na-esochi Czechoslovakia, na
Agha Indo-Pakistani nke 1971 nke dugara na ọmụmụ nke Bangladesh niile mere n'oge ọ na-eje ozi dị ka odeakwụkwọ ukwu.