> (Yes, the invader could try to get Mexico to agree to host the invading army, but the US would probably find out about that plan and respond by either blockad

> (Yes, the invader could try to get Mexico to agree to host the invading army, but the US would probably find out about that plan and respond by either blockading Mexico or invading it if it doesn't immediately abandon the plan.) Curious, how viable would this strategy be when invading via Canada?