The Northern barbarians were nomadic tribes that moved in the winter and summer months. The land that they lived on was mountainous and rocky, and although there were huge plains, the nomadic tribes couldn't farm year round because of their traveling nature and extreme weather. There had been a lot of tension in the Northern territories for the last few years. The hungry wolf was starving and a big chunk of meat, that was the Liang kingdom, was placed right in front of them.