Plzz ..i need quick the overall purpose of the conferences at casablanca (january 1943), teheran (november 1943), yalta (february 1945), and potsdam (july 1945) was to a) devise a solution to stop the holocaust. b) design an atomic bomb to end world war ii. eliminate c) plan the allied victory against axis forces. d) create a plan to drive mussolini from africa.