The armed forces fought for hours.
It wasn't merely to rid of what felt like an infinite amount of ogres that had previously crashed down on them and attacked, but that and many times more.
See, there was not just one dark portal that appeared following the initial surprise, and not all of them spouted ogres like water, they were certainly not threats to heedlessly dismiss.
Ogres, imps, and even types of Lesser Demons that they had never seen nor heard of before, such as those which were simply gremlins, those which resembled dogs from hell, those which crawled and slithered along the ground like a revolting hybrid between a reptile and a zombie with rotting flesh.
Cutting them down, scorching them with fire, freezing them in ice and shattering them, purifying and smiting them with holy light, riddling them with arrows and magic bolts, and exploding them through all kinds of means.