Don’t underestimate the actual logistics required for maneuver warfare in limited warfare is different than that in total war.
Should a foreign force begin with assessing their resources to project an invading force, then mold the environment upon which the advance to lessen their opposition, they may well be poised to invade a foreign shore.
We probably won’t see something like Normandy or Tarawa, but might well observe an invasion of Mexican illegals, coupled with well controlled columns similar to the US advance into Baghdad.
I’m with Abe. Much more true even than when he said it almost 175 years ago.
“At what point shall we expect the approach of danger? By what means shall we fortify against it?— Shall we expect some transatlantic military giant, to step the Ocean, and crush us at a blow? Never!—All the armies of Europe, Asia and Africa combined, with all the treasure of the earth (our own excepted) in their military chest; with a Buonaparte for a commander, could not by force, take a drink from the Ohio, or make a track on the Blue Ridge, in a trial of a thousand years.”
http://showcase.netins.net/web/creative/lincoln/speeches/lyceum.htm