Chaos in the Old World is a game about stomping all over your opponents, either by dominating regions or killing them off! Khorne is particularly good at the latter, requiring to spill much blood to the blood god to win. This was an issue for me, playing as Nurgle as my precious lepers kept being killed and harshing my ability to lay down corruption. I can imagine it'd be an issue for anyone else too.
How can I protect myself from Khorne? What is his weakness, and how can I exploit it?