Operation: FORTRESS

Operation: FORTRESS took place in the immediate aftermath of the August 26th attack, with all available UNDF ships ordered to return to Earth or their nearest rally point. Additionally, as a result of Operation: CASTLE CASE RED, all UNDF vessels were put on immediate combat alert, and to be wary of any unknowns. Several regions - the weakened outer planetary garrisons, and the weaker still asteroid positions - were abandoned for security reasons.