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Operation: Downfall, also known as the Invasion of Combine Space, was a series of joint military invasion launched by the combined forces of the Alliance of Nations, the Coalition of Independent States, and various independent factions against the Empire of the Combine Race from 2364 to 2372 N.E. Regarded by many as being brutal bloody and incredibly difficult as the combines fought bitterly for all the planets under its control, with the worse being the Battle of Valia which last throughout the Operation.

History[]

People Involved[]

Alliance of Nations[]

Coalition of Independent States[]

United Republic of Columbia[]

Democratic Union of Columbia[]

Pro-Alliance/Coalition Rebels[]

Empire of the Combine Race[]