sentences:  Sheridan said it was their fight, not his, and that he wanted to keep Draal's alliance with the station a secret as long as possible.Later that year Draal used the Great Machine to expand the temporal rift in sector 14, where the Babylon 4 station had been.Doing so allowed John Sheridan and Jeffrey Sinclair to take the White Star back in time, and ensure that Babylon 4 entered the temporal rift and wound up 1,000 years in the past as was its destiny.