Why did the united states do as a result of the roosevelt corollary apex?

The vocabulary word meaning causing destruction isrevenueruinousrepair

The military dictatorship inviolently reacted to the opposition of the maya, who demanded greater rights for their native population. the genocide inresulted from a struggle between arab nomadic tribes and non-arab agricultural groups. the tutsi were the victims of genocide inat the hands of the hutu rulers.

Why did federalists fear the louisiana purchase? what did they think would happen?