From my textbook (as I am prepping for my US History final)...
Expansionists emphasized extending the “area of freedom” and talked of “repelling the contaminating proximity of monarchies [read: bad governments] upon the soil that we have consecrated to the rights of man.”
Sound vaguely familiar? Setting up democracy? Freedom is on the march? Repelling evil empires?
Seems like Manifest Destiny didn't end with the US's expansion to the West.