Operation Breakaway was the last great military manoeuvre of the Terran Federation Navy against the Gbaba.

Commanded by Admiral Pei Kau-zhi, a force identical to that used in Operation Ark lay in silence until the moment had come for it to "replace" the Ark fleet in 2421. It then engaged the Gbaba, leaving them under the impression that they had destroyed the last humans who fled the Terran Federation. Some time after destruction of Admiral Pei's force, the Ark fleet reactivated their engines and proceeded to Safehold.

Lieutenant Commander Nimue Alban volunteered for Operation Breakaway; she could not stay with the Ark fleet, as her PICA could only be hidden from Eric Langhorne and his followers if she left the fleet and pretended to take it with her. (OAR)