The Iron Curtain is the name applied to the Canadian-American border, which symbolizes the ideological conflict and physical boundary which has divided the world into two separate areas since the end of the Second American Civil War in 1936, and especially since the 1950s. On either side of the Iron Curtain, states have developed their own international economic and military alliances:
- The Union of American People's Republics, member state and leader of the Wake Island Association.
- Canada, member country of the Allied Pact with the British Empire as the leading country.
Physically, the Iron Curtain takes the form of border defenses between the two countries.