Leo Frank was the commander of the EAS Cadmus. While attending the Earthforce Academy he was instructed by Edward MacDougan. In 2261 the Cadmus engaged Captain Sheridan's forces alongside the EAS Hydra and the EAS Delphi. Having being briefed on Sheridan's campaign, Captain Frank believed the propaganda that said that all of the Earthforce ships that had previously surrendered had had their crews executed and replaced with Minbari, including his old instructor Edward MacDougan. Because of this, Frank and the other Earthforce Captains continued to fight despite being outnumbered, out gunned and with their jump engines down. That is until Captain MacDougan told him to stand down, as he'd been lied to and that every member of his crew is still on board the Vesta.