Historians used to think the Mayans were a peaceful society but have since changed their mind. What are at least TWO reasons that could have forced the Mayans to become more warlike?

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

to force terrorists groups to stop attacking western targets using massive military force.

a system of cooperative federalism emerged, as the powers of the federal government expanded.

a stronger central government  

its what they are