Board Thread:Lore Discussion/@comment-69.178.92.193-20150828001542/@comment-9212235-20150828140130

They probably knew since they had soldiers in Valenwood. It isn't so much that they didn't do anything about it and more of the fact that the Colovians stationed there couldn't do anything about it. With so much happening, they best they could have done was hold their ground and eventually be over run and die. There was no stopping the Dominion. There were no reinforcements. The only thing in Valenwood for the Imperials was death.