[marron]

Seriously, we should have some marine recon units scattered along the border, ready to deal with this. Are these guys mafia in military garb? or Mexican Army contracting themselves to the mafia? In the end, it makes no difference.

Take them out.

[jazusamo]

Right. Send some Recon units or Special Forces A-teams to the known areas and set up ambushes. After the smoke clears we'll have bodies and prisoners to verify the incursion. It really won't matter if they're Mexican Army or drug smugglers, people on both sides of the border will get the message.