User blog comment:The Milkman/Extended Expectations/@comment-25305799-20120626172519/@comment-1221773-20120626173340

The galaxy's forces were never going to be enough to defeat the Reapers on their own, that was pretty clear without EC. The battle for Earth was a suicide mission, the whole point of amassing those fleets and armies was to deliver the Crucible so it could hopefully destroy the Reapers.