Olwen retreated with 1k naked troops, of which 600 got away.
1,5k troops were locked down in Yalibe, before Olwen could withdraw them.
Same for Peshmi.
We couldn't possibly defend Yalibe through the next attack.
It is called damage control, if we hadn't lost the siege of Reindi, we could've made off with a good amount of gear and troops.