Why do the Tropical North's nations have a history of tense relations and internal unrest?

to provide for the common defense to form a more perfect union to promote the general welfare

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.

by killing the americans thats what i would say