How about Mexico get their rag tag Army up here and try to stop us from doing whatever we want to do within our own borders. Bring it on.
When was the last time that the U.S. sued the Mexican government for deploying their troops along our border to aid and abet human traffickers and drug smugglers?
They won't even send their Army to Neuvo Laredo to stop the Gang Wars and violence just across our Borders...