"The United States is one of the four great powers, that vie for supremacy following the end of WWII. Its allies include Mexico, Britain, Ireland, Canada and El Salvador among other Latin American and Commonwealth nations. It is the head of NATO."@en . "The United States is one of the four great powers, that vie for supremacy following the end of WWII. Its allies include Mexico, Britain, Ireland, Canada and El Salvador among other Latin American and Commonwealth nations. It is the head of NATO."@en . . . . "United States of America (Multilateral Cold War)"@en . .