The United Mexican States, commonly referred to as Mexico, is a federal constitutional republic in North America. It is bordered on the north by the former United States, and on the south by the Republic of Yucatan and Guatemala. Mexico has become one of the world's largest economic and military powers after the ANZC and the South American Confederation. Mexico is a strong ally of both the ANZC and the SAC, sometimes playing a mediator-type role regarding disputes between the two governments, and plays an active role in the League of Nations.