The US military is currently deploying hundreds of thousands of our young men and women to secure hundreds (if not thousands) of embassies, compounds, bases, forts, FOBs, outposts and camps throughout the world. What would be the square mileage of those areas we currently secure around the globe? I believe that by bringing some of those troops back here and placing them along our 2,000 mile border with Mexico, and putting them there on a combat footing rather than a paper pushing "advise and assist" role, our border crossing could be cut drastically. We are currently rotating the US Army brigades and divisions through combat deployments to Afghanistan (18 years later still). What if we rotated them through combat deployments on our border instead? Same guys, same weapons, same equipment, slightly different mission. We have to keep the cartels off of our border.