Miller goes on to list his four main priorities for the military as a whole going forward: 

1. Reestablish a culture of command accountability, nonpoliticization, and warfighting focus.
2. Transform our armed forces for maximum effectiveness in an era of great-power competition.
3. Provide necessary support to Department of Homeland Security (DHS) border protection operations. Border protection is a national security issue that requires sustained attention and effort by all elements of the executive branch.
4. Demand financial transparency and accountability.

(Project 2025, Section 2.1: Department of Defense, Christopher Miller, page 124, paragraph 3.)

Wait, what was that third one? Federally sanction using the United States Military to patrol the border? What would the results of that look like?

“A militarized approach to the border not only harms undocumented people, but it also harms entire communities. Border Patrol agents racially profile and harass people of color across the region. They drive recklessly through our communities and fatally wound our neighbors in vehicle pursuits. CBP’s use of intrusive surveillance technologies erode border residents’ privacy rights and force them to live under the constant gaze of the federal government.” Source: Maria Coronado, Immigrant Rights Field Organizer¹

Texas Governor Greg Abbott’s militarization of the border resulted in widespread human rights abuses²:

“Texas’ Operation Lone Star is an abusive system of border policing that has been found unconstitutional by a Texas district court. The federal government, including the Department of Homeland Security, has been on notice since at least December 2021 that Operation Lone Star targets people based on race and national origin, disregards due process, and subjects them to abuses in detention.” [Source]³ The cost to the Texas taxpayers for funding these human rights abuses? More than 3 billion dollars.⁴

So. Is militarizing the border a good idea? History suggests no, it results in human rights abuses and discrimination. It’s yet another deeply racist policy, which wouldn’t resolve the fentanyl crisis in the first place (see above.) Alternatively, there are humane approaches to border security⁵.