No country capable of landing a single troop on the lower 48 is scared of undisciplined men with AR-15s.
In fact I am not sure if any country can get a troop transport near the US coast without being nuked to the ground first.
In the 1930s and 1940s, Mexico wanted to invade Texas and reverse the Mexican American war.
In the 1930s and 1940s, Mexico wanted to invade Texas and reverse the Mexican American war.