Muv Luv Alternative: Desparation

The USA is the central country of North America. Coming out of World War 2, America was poised to become the next major world super power, it's economic and industrial might carrying it into the new age, but upon leading the space race and discovering the BETA on Mars, and fighting them on the moon before they made landfall, they've become insular in their politics. After watching China's massive army lose ground and its neighboring countries getting pressured in a matter of weeks, when the second BETA Hive landed in Canada, the country to the north, they hit it with a preemptive nuclear strike, destroying the Hive, but irreparably damaging their relations with their northern neighbors. The USA is responsible for the invention and proliferation of Tactical Surface Fighters (TSFs), the mechs used to combat the BETA. The main headquarters of the United Nations (UN) is based here.