Zeus commanded the main force of the Hellenic Navy, they would not arrive in time for the start of the battle, and it was difficult to think of an interstellar battle that would last more than three days.
There were possibilities of saving a day of travel, but that depended more on the state of the gravitational emissions of some stars; the orbital engines could make the most of the peak moments of activity to propel themselves.
However, that did not stop Zeus from preparing all the battleships for a combat situation.
It was true that much of the bulk, or core, of the attack force had been sent along with the Alpha 2 fleet. All the frigate, destroyer, and corvette-type ships had left with full crews and all possible Mechas. Lighter ships, such as cruisers, gunboats, and smaller fast ships, had been sent to the Alpha 1 fleet.