Forerunner fleet size 2

Having escorted the last Forerunners to safety, we have re-positioned the last of our fleets, including those that protected Path Kural. Their tactics have proven effective in skirmishes on the Lines of the Jat-Krula sphere.

The Falchion, former defender of the Orion complex, is one of the nine commanders trained during the Didact’s exile. For nine hundred years the Falchion worked with the Builders, but remained inwardly loyal to Warrior-Servants and the Didact, unlike many of his colleagues. The Falchion is in command of our first clench. Four themas stand in peril of total infection.

Warrior-Servants stand ready across nineteen systems formerly linked by star roads. Engaged in the clench: twelve fully capable Fortress-class battle stations, of limited mobility due to space-time debt, which will act as apex control for seven hundred thousand more nimble Harrier-class vessels.
(Halo:Silentium; Ch.25)

Harrier: Third-order Forerunner capital ship used for interception and containment.
(Halo Warfleet; pg.90)