Washington D.C

Washington D.C, officially known as the Provincial Government of the United States of America, and the District of Colombia is a nation and former special administrative district of the United States of America and officially the successor state to the USA, following it's collapse during the American Collapse War. It is bordered by Maryland and Virginia and straddles the Potomac River.

Early History
Originally apart of Maryland, it was founded as it's own special district in 1801 although it had officially been the capital since ~1790.

It saw little problems, apart from during the War of 1812 when most of the city (including the White-House) was burnt down by British forces. However, during the civil war, there was a constant threat of it being invaded by the Confederates, but this never happened due to a large array of defenses from the union.

Collapse War
During the Collapse War, it was the main capital and military base of the United States of America. It was virtually untouched by the war and following the Christmas Day Agreement it became it's own city-state as the Provincial Government of the United States of America, and the District of Colombia.