
These factions gain the diplomatic trait Shield of Civilization during a Chaos Invasion, making them more likely to stick together against Chaos. In Mortal Empires, they are joined by High Elves and Lizardmen. Opposing Chaos is The Empire, Dwarfs, Bretonnia and other human factions. You would need to be very powerful to take them on alone. As empire and to a lesser extent dwarfs you'll be up against the main chaos invasion which (if I remember right from total warhammer 1) is 5 hard armies each led by a legendry lord. There is no 'getting ready' for the chaos invasion anymore, not unless you are playing a faction that will encounter them directly early on. And in one campaign, Empire just eradicated them near their spawning point. Chaos barely makes it out of the frozen wastes. Over 3 recent campaigns, Empire just swats chaos aside like a minor inconvenience.
