After the second wave of White Stars jumped into the Proxima system, Captain Trevor Hall of the EAS Heracles ordered Vesta and the EAS Juno to launch fighters and take point at the second wing. She was then ordered to turn and engage the third wave of Whitestars, which had jumped in to the rear of the blockade fleet.
Captain MacDougan broke radio silence and opened communications with Captain Sheridan. Following this conversation, MacDougan refused to engage the White Star fleet, feeling that it would be an action in support of illegal orders. As a result, Captain Hall promoted Commander Robert Philby and ordered him to take command of the Vesta. Philby proceeded to bring the Vesta into the fight, but only for a short time. The crew of the Vesta "postponed" Philby's promotion, and returned command to MacDougan. He ordered the Vesta to stand down, and declared his ship non-hostile to the White Star fleet. Following the battle, Captain MacDougan and the Vesta signed on with Sheridan's forces in their campaign to liberate Earth.
President Clark informed Earthforce that the crew of the Vesta was replaced with Minbari crewmembers. The Vesta fought in a fleet action against Clark's forces in an asteroid belt. Captain MacDougan was able to help convince Captain Leo Frank of the EAS Cadmus to stand down after Captain Frank refused to surrender based on President Clark's briefing.  The Vesta fought in a fleet action near Beta IX. The Vesta accompanied the fleet to Mars.  The Vesta was present when a Clark-aligned fleet was disabled by smuggled telepaths. The Vesta fought at the Liberation of Earth. 
The presence of the Vesta at Mars and Earth are assumed because the Vesta accompanied the fleet to Mars during "Between the Darkness and the Light", and an Omega Class vessel with the hull lettering of V can be seen in the background of Sheridan's fleet.
|Earthforce Ship Classes|
|Olympus-class corvette Hyperion-class heavy cruiser Nova-class dreadnought Omega-class destroyer Advanced Omega-class destroyer Warlock-class destroyer|
|SA-23E Starfury SA-32A Thunderbolt Stealth Starfury Heavy Starfury Badger-class Starfury|
|Earthforce One Magnum heavy lifter Breaching pod Troop Transport Kestrel Class Atmospheric Shuttle Crew Shuttle|
|Aegis orbital defense platform Life pod Work pod Gunship Explorer class ship Cotten class Deep Penetration Tender Shadow Hybrid|
|EAS Acheron EAS Achilles EAS Agamemnon EAS Agrippa EAS Alexander EAS Apollo EAS Artemis EAS Cadmus EAS Cerberus EAS Charon EAS Churchill EAS Damocles EAS Delphi EAS Excalibur EAS Furies EAS Heracles EAS Heraclion EAS Hermes EAS Hydra EAS Juno EAS Medusa EAS Nemesis EAS Nimrod EAS Olympic EAS Orion EAS Persephone EAS Pollux EAS Pournelle EAS Roanoke EAS Talos EAS Theseus EAS Vesta EAS Zeus|