Secret US Plan to Overthrow the British Empire

After the Great War, there was much debate in the USA whether the country should isolate itself from old world' conflicts or follow an imperialist path and become the world's only super-power. If the USA was to become a super-power, then conflict with Great Britain might result. Consequently, the US drew up War Plan Red.

This was a scheme for the USA to invade Canada and the Caribbean which would draw the Royal Navy into North American waters where it would be destroyed. Without the Royal Navy, the rest of the British Empire would be vulnerable to American attacks.