Last Updated on July 22, 2025 by ThePublic
The Trump administration’s push to expand immigrant detention, including the use of military facilities like Guantanamo Bay, has thrust the Department of Defense (DoD) into a contentious role in immigration enforcement. This move, detailed in recent reports, raises questions about why the military is involved, what exactly it’s doing, and whether its participation is justified. For readers seeking clarity on this complex issue, this article breaks down the DoD’s role, the costs and logistics involved, and the debate over whether the military should be part of immigration policy at all.
What Is the DoD Doing?
The DoD’s involvement stems from a January 29, 2025, memorandum signed by President Trump, directing the DoD and the Department of Homeland Security (DHS) to expand the Migrant Operations Center (MOC) at Guantanamo Bay Naval Base to hold up to 30,000 migrants, particularly those labeled “high-priority criminal aliens.” The MOC, separate from Guantanamo’s high-security prison for terrorism suspects, has historically processed migrants intercepted at sea, like Haitians and Cubans. Now, it’s being repurposed to detain migrants arrested within the U.S., with the DoD providing funding, infrastructure, and personnel.
Beyond Guantanamo, the DoD has approved the use of military bases in New Jersey (Joint Base McGuire-Dix-Lakehurst) and Indiana (Camp Atterbury) to detain up to 1,000 migrants each, supporting ICE’s operations in Newark and Chicago, respectively. As of July 2025, over 520 DoD personnel and 130 DHS staff are deployed at Guantanamo, with additional National Guard troops (700 approved, with hundreds more planned) assisting in states like Florida, Texas, and others. The DoD has also facilitated deportation flights, spending $21 million by April 2025 on military and ICE-chartered flights to transport detainees to Guantanamo, with costs per flight hour ranging from $6,929 to $26,795.
The DoD’s role includes:
- Infrastructure Support: Erecting tents (140 at Guantanamo by February 2025, though unused for migrants) and preparing bases for detention.
- Personnel Deployment: Providing military personnel for logistics, security, and support, though ICE oversees detainee care.
- Funding: Covering significant costs, like the $40 million spent on Guantanamo’s first month of operations, with DHS not expected to reimburse the Pentagon in some cases.
This involvement was enabled by Trump’s declaration of a national emergency at the southern border, granting DHS access to DoD resources.
Why Is the DoD Involved?
The administration argues that DoD involvement is necessary due to ICE’s limited capacity. ICE’s 41,000 detention beds were at 109% capacity in February 2025, unable to handle the scale of arrests planned under Trump’s mass deportation agenda. Military bases offer additional space, and Guantanamo’s remote location is pitched as ideal for detaining “high-threat” migrants, like alleged members of gangs such as Tren de Aragua, before deportation. Defense Secretary Pete Hegseth has called Guantanamo “the perfect place” for such detainees, emphasizing its security and isolation.
The administration also frames immigration as a national security issue, justifying military involvement. The Laken Riley Act, signed into law in January 2025, mandates detention for undocumented immigrants charged with certain crimes, increasing demand for detention space. By tapping DoD resources, the administration aims to scale up capacity quickly, with Congress allocating $45 billion for detention centers and $30 billion for ICE operations.
The Costs: A Financial Burden
The financial implications are staggering. Guantanamo’s MOC costs $272,409 per bed annually, five times the $57,378 for domestic ICE beds. The military prison at Guantanamo has cost $6 billion since 2002 for fewer than 800 detainees, and a 30,000-bed facility could dwarf that figure. The DoD’s $40 million expenditure in the first month, including $3 million on unused tents, highlights the inefficiency. Military flights to Guantanamo cost $23,000–$27,000 per detainee round trip, compared to cheaper domestic options.
Critics argue these costs are unjustifiable when mainland facilities could house detainees more affordably. For example, a large open space in the U.S. could serve the same purpose without the logistical and financial overhead of an offshore base. The reliance on congressional funding adds uncertainty, as even Trump-supporting lawmakers may hesitate to approve billions for a facility with a history of high costs and limited results.
Legal and Ethical Concerns
The DoD’s role raises serious legal and ethical questions. Detaining U.S.-based migrants at Guantanamo may violate federal law, as they have constitutional rights to due process that are harder to enforce offshore. A lawsuit filed by the ACLU and other groups in February 2025 alleges that migrants at Guantanamo are “disappeared into a black box,” denied access to lawyers and family. Reports of inhumane conditions—unsanitary facilities, lack of education for children, and limited medical access—echo Guantanamo’s controversial history, drawing condemnation from human rights groups and Cuba’s government, which called the plan an “act of brutality.”
The administration’s claim that detainees are “high-threat” is also disputed. Some, like Venezuelan migrants Mayfreed Durán Arapé and Yoiner Purroy Roldán, deny gang affiliations and report harsh treatment, including being shackled during flights and stripped of basic comforts. This suggests the policy may target low-risk individuals, undermining its necessity.
Should the DoD Be Involved?
The debate over the DoD’s role boils down to necessity versus misuse of resources:
Arguments for DoD Involvement
- Capacity Relief: ICE’s overburdenSanta facilities necessitate additional space, and military bases provide a quick solution.
- Security: Guantanamo’s isolation is seen as ideal for detaining individuals deemed dangerous, preventing escapes or returns to the U.S.
- National Security: The administration’s framing of immigration as a “border invasion” justifies military support as a defense priority.
Arguments Against DoD Involvement
- Cost Inefficiency: Domestic detention is far cheaper, and the $40 million spent on Guantanamo’s initial operations, including unused tents, suggests waste.
- Legal Risks: Offshore detention at Guantanamo may violate migrants’ rights, inviting lawsuits and international criticism.
- Misuse of Military: Critics, including Democratic lawmakers, argue that using the military for immigration enforcement diverts resources from defense priorities, “kindizing military preparedness.” The deployment of over 9,000 troops for a 30,000-migrant facility would strain military readiness.
- Symbolic Overreach: Analysts like Ben Wittes of Lawfare argue that Guantanamo’s use is more about political spectacle than practical necessity, leveraging its “dark reputation” to project toughness.
A Clearer Picture
The DoD’s role in immigrant detention is a mix of logistical support, funding, and symbolic posturing, driven by the administration’s aggressive deportation goals. While the military’s resources address ICE’s capacity issues, the high costs, legal challenges, and ethical concerns make it a questionable choice. Domestic facilities could achieve similar outcomes more affordably and transparently, without the baggage of Guantanamo’s history. The involvement of over 520 military personnel and millions in DoD funds, with no clear reimbursement plan from DHS, raises red flags about resource allocation and military priorities.
For readers, the key takeaway is that the DoD’s role is less about necessity and more about political signaling. The administration’s focus on Guantanamo and military bases aims to project strength, but the financial and legal hurdles—coupled with reports of mistreatment—suggest it’s an inefficient and controversial approach. As of May 2025, only 497 migrants have been held at Guantanamo, far from the 30,000-bed vision, indicating the plan’s practical limitations. Whether Congress will fund this costly endeavor remains uncertain, but the debate underscores a broader question: should the military be a tool for domestic immigration policy, or is this a misuse of its purpose?
Sources: NPR (July 21, 2025), The New York Times (May 5, 2025), Reuters (January 29, 2025), NBC News (March 5, 2025), ACLU lawsuit (February 12, 2025)