Maybe another aspect of this deployment is a strong operation against the cartels.  After all, the trafficking is one of their bread and butter 'divisions'.  Stopping the flow of humans will, by nature, stop the flow of money to them.  It will also disrupt their drug exports if their 'mules' are fully discouraged. If the flow of people is staunched, our costs for controlling the border goes down, leaving more resources for permanent effective barriers to be constructed. Wait a minute...that means...by deploying their troops...MEXICO is PAYING FOR THE WALL. Promises Made, Promises Being Kept - MAGA, you'll.