The strategically minor incursions into Laos and Cambodia the US did engage in resulted in an international outcry and further sapped support we had from allies. That's part of the problem of assuming a military solution to modern wars. No nation is strong enough to go it alone any longer. War is now more than ever an extension of politics. I feel like a lot of folks who argue we could have won Vietnam if only we were more harsh or more brutal or more expansive in who we fought forget that politics are part of war and that the military is not a solution in and of itself.
Also, the Soviets, Germans, and Japanese did not face resistance only as a function of distance from the metropole. It was more closely related to the level of brutality they engaged in.
Also, the Soviets, Germans, and Japanese did not face resistance only as a function of distance from the metropole. It was more closely related to the level of brutality they engaged in.