Core Concentration - What Cause the Mayan Civilization Collapse?

     The end of the Mayan civilization remains a mystery. I think that warfare cause the Mayan civilization to collapse. Since battle is common during Mayan times, population must have decrease and no one were able to fight, therefore the kings and nobles will have less soldiers in the military. In other words, it may be that since Mayan people killed and burned all their enemies and their enemies' towns, at the end only few people will be left. It may be that there are only the rulers left; when one ruler won there won't be many people in his town left, since they were all attacking eachother. 
     Because of warfare, it destroyed fields and crops. Then there are less food supplies and that couldn't support the population left. Then people die of starvation. As you can see, warfare cause the end of the Mayan civilization by violence, destruction, and starvation.