I noho a Jebb hei karere mo te United Kingdom ki te United Nations mai i te 1950 ki te 1954 me te Paris mai i te 1954 ki te 1960. Ko ia te māngai tuatahi o te United Kingdom ki te UN. I roto i te mahi whakamutunga i riri ia i nga whiriwhiringa huna i waenga i nga Ingarihi, French me Iharaira i mua i te whakaekenga o Suez i te 1956 i Sèvres kaore i mohio ia, a, i etahi waahanga, i whakaekehia ia e te Pirimia Harold Macmillan i te hui "mana nui" i Paris i te 1960. Ko te ahua "nui" o Jebb i meinga e te Minita mo nga Taiao o waho a Selwyn Lloyd ki te tuhi i te epigram, "He nama koe, Sir Gladwyn Jebb". Patai: He aha te tuunga a Jebbs?
Ko te Tumuaki o te United Kingdom ki te United Nations