United Kingdom–United States relations in World War II

The UK-US relations in World War II comprised an extensive and highly complex relationship, in terms of diplomacy, military action, financing, and supplies. British Prime Minister Winston Churchill and American President Franklin D. Roosevelt formed close personal ties, that operated apart from their respective diplomatic and military organizations against Hitler's Germany, Mussolini's Italy and Tojo's Japan.

Source: Wikipedia — United Kingdom–United States relations in World War II (CC BY-SA 4.0)