Tuhia he tohutoro mō tēnei wāhanga - I ngā tau tuatahi o te hononga Ingarihi-Amerika, ko te nuinga o te wā ko te Ingarihi te hunga i whiwhi i ta ratou i pai ai. I te Huihuinga o Rānana i te Paenga-whāwhā o te tau 1942, ko Brooke raua ko Churchill te mea i pohehe i a General George Marshall, te Tumuaki o te Ope Taua o Amerika, mo nga whakaaro o Ingarangi mo te taunga wawe ki France. I te Huihuinga o Casablanca i te marama o Hanuere 1943, i whakatauhia kia whakaekehia e nga Allies a Sicily
, i raro i te whakahau a te Tiamana Dwight D. Eisenhower, he whakatau i whakaroa ai te whakaekenga o Uropi ki te Hauauru tae noa ki te tau 1944. Ko te whakaaetanga o Casablanca he whakataunga, i whakatauhia e te hoa tawhito a Brooke, a Field Marshal Sir John Dill, te Tumuaki o te British Joint Staff Mission i Washington DC. "He nama nui taku ki a ia [Dill] mō tana āwhina i taua wā, i ētahi atu hoki", i tuhituhi a Brooke i muri i te pakanga.