Kingdom VS Kingdom aka KvK is where Kingdoms all over Lords Mobile are able to fight each other, as you fight and get kills/wounded you'll gain points, these points will contribute to your Kingdoms overall point count. You'll receive 5x more points when you kill troops rather than wound. The whole objective of Kingdom vs Kingdom is to capture opposing Kingdoms wonders.

Not much info is known about KvK yet however this page will be updated when it is more revealed.