Jesus tells Pilate what the Kingdom of God is not:

“Jesus answered, "My kingdom is not of this world. If My kingdom were of this world, My servants would fight, so that I should not be delivered to the Jews; but now My kingdom is not from here." John 18:36

But He also tells us in several places what it is, including this important statement:

"The kingdom of God does not come with observation; nor will they say, 'See here!' or 'See there!' For indeed, the kingdom of God is within you." Luke 17:20,21

God’s kingdom is a kingdom of character and there is no fighting in this kingdom using carnal or physical weapons. Its principles are like seeds that gently grow in the soil of the heart.

How then do we explain the conquest of Canaan and all the fighting of the Israelites in the Old Testament. These questions are addressed in this presentation.