Boy, the Great War came along at just the right time, didn't it? And what a happy result, too!
By the way, the Empire of Japan was on the side of us good guys in the Great War. They were rewarded by participating in the looting of German territories in the Far East. To get rid of Japan (a rival) it became necessary to turn the Japanese into enemies so Japan could be bombed into oblivion along with Germany in W.W. II. Then, like Germany (and Great Britain too), Japan could become a U.S. military base so everyone could be protected from the evil communists. I wonder how long it would take the U.S.A. to invade Canada if oil sales were cut off? Two minutes? That long? So much for "the world's longest undefended border"!
Fighting for freedom and democracy, that's the American Way. Right?
P.S.: Compare the military-style expedition of Lewis and Clark organized by Thomas Jefferson to Alexander MacKenzie of the Hudson's Bay Company. MacKenzie got to the Pacific first (and more).