The Casablanca Conference or Anfa Conference was held in Casablanca, French Morocco, from January 14 to 24, 1943, to plan the Allied European strategy for the next phase of World War II. The main discussions were between US President Franklin Roosevelt and British Prime Minister Winston Churchill. Stalin could not attend. Key decisions included a commitment to demand Axis powers' unconditional surrender; plans for an invasion of Sicily and Italy before the main invasion of France; an intensified strategic bombing campaign against Germany; and approval of a US Navy plan to advance on Japan through the central Pacific and the Philippines. The last item authorized the island-hopping campaign in the Pacific, which shortened the war. Of all the decisions made, the most important was the invasion of Sicily, which Churchill pushed for in part to divert American attention from opening a second front in France in 1943, a move that he feared would result in very high Allied casualties and not be possible until 1944.

Casablanca is the largest city in Morocco and the country's economic and business centre. Located on the Atlantic coast of the Chaouia plain in the central-western part of Morocco, the city has a population of about 3.71 million in the urban area, and over 4.27 million in Greater Casablanca, making it the most populous city in the Maghreb region, and the eighth-largest in the Arab world.