With regard to Latin American Marxists, intervention by the military may not be the best solution simply because of our other commitments. However, a few months ago, both the MSM and the Administration dumped on Pat Robertson when he suggested that we use some Cold War era tactics (assassination) to take out Hugo Chavez. Whatever you think of Robertson's other remarks and comments, he was right in this instance.
As for the Mexican army, build the wall and nail them if something happens.
Agreed. The more important matter is whether the Administration agrees, however.