The preparations to leave Alpha Centauri strained the Peloran ability to rebuild their damaged ships, to build new fighters and drones, and to upgrade the Western Alliance ships that would fly with them.  They never could have done it without the salvaged Shang fabricators to do the bulk of the heavy lifting.  We still missed five deadlines before we finally flew.  It’s a good thing Peloran warships are so hard to kill or we would have been in real trouble.