[grey_whiskers]

No it’s not. But, after Korea and Vietnam you won’t see large scale American troops on mainland Asia anytime soon.

Could we dislodge a Chinese invasion of say, Canada, without nukes?

Canada --> lebensraum and fresh unpolluted water (but not for long should the Chicoms arrive).

[snoringbear]

"Could we dislodge a Chinese invasion of say, Canada, without nukes?" Umm, whiskers, seriously? Well, I'll play along, lol! First, the logistics of a trans Pacific invasion of Canada by the PRC are so huge it's incomprehensible. Then, there's the ability to project power across such an enormous distance - which China doesn't even have close to possessing. And, won't have for the foreseeable future. I'm stopping here. 😏....