Pan-Anglo Commonwealth

Background
Made up of the old British Commonwealth and the Nations of North America. Long standing alliances and peace between these nations lead to a sort of kindred and as the fall of the old order began, it was agreed to meld the scattered nations into one power to survive the tide.

The United States of America's Decline
As the 21st century advanced, the fall of the United States dominance as the Earth's only superpower became more and more a reality as China rebuilt from it's stagnation and eventual downfall during the 19th and 20th centuries. Outrage at home in the United States on the never ending conflict in the middle east drained resources and morale to the point the pressure to leave the region rivaled the times of the Vietnam war in unpopularity. This eventually forced the United States to follow in many other Western powers years before in pulling it's troops out of the region.

The result in the following years was a global energy crisis. With the Middle East being one of the richest areas of fossil fuels and under prepared governments falling to chaos once more with foreign troops completely leaving them to their fates, nations were forced to find a alternative. A solution that was lengthy and costly, damaging economies around the world. As The United States strive to find that solution force military cuts and oversea bases to be recalled, allowing China and Russia the opening to become aggressive in the vacuum. Eventually the United States pulled all assets back to the homeland marking the end of their century long dominance.