United States vs Mexico: What Decides Invasion?
Most analysis asks who is stronger. Warlord Intel asks who has leverage.
Short answer
A Mexican invasion of the US is a low-probability, high-impact scenario that would result in a swift and overwhelming US military response. The primary outcome would be the rapid defeat of the Mexican military, the collapse of the ruling junta, and a prolonged period of instability and insurgency in Mexico that would have severe economic and security consequences for all of North America.