We didn't try to make most of those places our empire.
A lot of those were us trying to clean up some other empires mess either to get their former empire away from us(Cuba,Philippines,Puerto Rico,Guam, South Korea) or as a favor(Vietnam to France)
We frickin bought Alaska.
The American equivalent of Canada, New Zealand, is almost everything west of Texas and between the Mississippi and the Appalachians. We built it up just fine.
We didn't try to make most of those places our empire.
A lot of those were us trying to clean up some other empires mess either to get their former empire away from us(Cuba,Philippines,Puerto Rico,Guam, South Korea) or as a favor(Vietnam to France)
We frickin bought Alaska.
The American equivalent of Canada, New Zealand, is almost everything west of Texas and between the Mississippi and the Appalachians. We built it up just fine.
Power vacuums and purchases are still imperial projects.
West of Texas is what we personally colonized. That's why it succeeded.