Battle Signs

 is Track 6 on the Xenosaga THE ANIMATION Original Soundtrack. It plays in the following scenes:
 * Cherenkov joins the discussion between Shion and Moriyama regarding KOS-MOS's test data in Episode 1.
 * The Elsa gates in to hyperspace in Episode 3.
 * The U-TIC battleship attacks the Elsa in Episode 4.
 * The party views the doctored footage of the Durandal supposedly attacking Galaxy Federation ships in Episode 7.