Soldier surveys an area that is popular for border crossing near Laredo

Military.com | By Steve Beynon[1]

Published

In a sharp escalation of border security efforts, U.S. and Mexican forces will soon begin synchronized patrols along their respective sides of the southern border, the Pentagon announced Wednesday.

The joint effort underscores the Trump administration's push to have an aggressive posture on the border, a part of a key campaign promise President Donald Trump made to dramatically curtail illegal immigration.

One of Trump's first moves after taking office in January was surging some 3,600 American troops across the U.S.-Mexico border, with the Army[2]'s 10th Mountain Division serving as the headquarters element overseeing much of the mission. The surge in active-duty troops is in addition to some 2,500 National Guard[3] members who had already been deployed there before Trump took office.

Read Next: USS Truman Commander Fired After Collision with Merchant Ship near Suez Canal[4]

Following a meeting between Gen. Gregory Guillot, head of U.S. Northern Command and the top American official overseeing troops in the region, and Gen. Ricardo Trevilla Trejo, the top officer of Mexico's military, a Pentagon statement said that the pair agreed to "increase information sharing and establish methods for immediate communications."

"Border security is national security; we're going to get 100% operational control of our southern border," Defense Secretary Pete Hegseth said during an address to Pentagon staff earlier this month. "That will be a focus of this department."

Yet, as the troop presence grows, the Pentagon has provided scant details on the exact scope of the mission. Media access remains restricted -- a sharp contrast to the often open coverage granted during previous military operations in Iraq and Afghanistan.

The lack of clarity has fueled questions about whether troops will directly engage with migrants or contribute to physical barrier construction. Air Force[5] personnel on the mission have also removed name tapes and unit identifiers during flights with migrants, the only service to do so[6].

Also, National Guardsmen who have served on the border in recent years have reported issues with their units not being utilized during the missions.

Other major deployments[7] include military police units from most major Army installations in the U.S., including Fort Cavazos[8], Texas; Fort Carson[9], Colorado; and Fort Drum[10], New York.

The military has also deployed Marine detachments from the 1st Combat Engineer Battalion, 1st Marine Division, and 7th Engineer Support Battalion, 1st Marine Logistics Group, both out of Camp Pendleton[11], California.

Related: Air Force Has Troops Remove Names, Unit Patches from Uniforms During Deportation Flights[12]

Military Headlines[13] Global Hot Spots[14] Mexico[15] Immigration & Citizenship[16] Border Security[17] Border Wall[18] Policy[19] Department of Defense - DoD[20] Pentagon[21]

© Copyright 2025 Military.com. All rights reserved. This article may not be republished, rebroadcast, rewritten or otherwise distributed without written permission. To reprint or license this article or any content from Military.com, please submit your request here[22].

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Soldier surveys an area that is popular for border crossing near Laredo

Military.com | By Steve Beynon[1]

Published

In a sharp escalation of border security efforts, U.S. and Mexican forces will soon begin synchronized patrols along their respective sides of the southern border, the Pentagon announced Wednesday.

The joint effort underscores the Trump administration's push to have an aggressive posture on the border, a part of a key campaign promise President Donald Trump made to dramatically curtail illegal immigration.

One of Trump's first moves after taking office in January was surging some 3,600 American troops across the U.S.-Mexico border, with the Army[2]'s 10th Mountain Division serving as the headquarters element overseeing much of the mission. The surge in active-duty troops is in addition to some 2,500 National Guard[3] members who had already been deployed there before Trump took office.

Read Next: USS Truman Commander Fired After Collision with Merchant Ship near Suez Canal[4]

Following a meeting between Gen. Gregory Guillot, head of U.S. Northern Command and the top American official overseeing troops in the region, and Gen. Ricardo Trevilla Trejo, the top officer of Mexico's military, a Pentagon statement said that the pair agreed to "increase information sharing and establish methods for immediate communications."

"Border security is national security; we're going to get 100% operational control of our southern border," Defense Secretary Pete Hegseth said during an address to Pentagon staff earlier this month. "That will be a focus of this department."

Yet, as the troop presence grows, the Pentagon has provided scant details on the exact scope of the mission. Media access remains restricted -- a sharp contrast to the often open coverage granted during previous military operations in Iraq and Afghanistan.

The lack of clarity has fueled questions about whether troops will directly engage with migrants or contribute to physical barrier construction. Air Force[5] personnel on the mission have also removed name tapes and unit identifiers during flights with migrants, the only service to do so[6].

Also, National Guardsmen who have served on the border in recent years have reported issues with their units not being utilized during the missions.

Other major deployments[7] include military police units from most major Army installations in the U.S., including Fort Cavazos[8], Texas; Fort Carson[9], Colorado; and Fort Drum[10], New York.

The military has also deployed Marine detachments from the 1st Combat Engineer Battalion, 1st Marine Division, and 7th Engineer Support Battalion, 1st Marine Logistics Group, both out of Camp Pendleton[11], California.

Related: Air Force Has Troops Remove Names, Unit Patches from Uniforms During Deportation Flights[12]

Military Headlines[13] Global Hot Spots[14] Mexico[15] Immigration & Citizenship[16] Border Security[17] Border Wall[18] Policy[19] Department of Defense - DoD[20] Pentagon[21]

© Copyright 2025 Military.com. All rights reserved. This article may not be republished, rebroadcast, rewritten or otherwise distributed without written permission. To reprint or license this article or any content from Military.com, please submit your request here[22].

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U.S. Marines install barbed wire along the border fence in San Diego

WASHINGTON — Drug Enforcement Administration agents touting immigration arrests, IRS agents poring over documents, the military escorting deportation flights. As the Trump administration[1] works on the president's pledge to crack down[2] on illegal immigration and carry out mass deportations[3], the flurry of activity has stretched across the federal government — well beyond the Department of Homeland Security, the traditional home to most immigration and border security functions.

President Donald Trump's sweeping promises have translated into a whole-of-government approach for immigration enforcement. In other words, nearly every major Cabinet agency is an immigration agency in Trump's government.

The departments of State, Defense and Justice have made immigration a clear priority in their work and public messaging. Parts of the departments of Treasury and Health and Human Services have been involved. And the reach and focus on immigration are only expected to grow, with the Republican president late Wednesday signing an executive order[4] aimed at ending federal benefits for people in the U.S. illegally.

“The breadth of what is happening in these first couple of weeks is much wider than we saw during the first Trump administration,” said Colleen Putzel-Kavanaugh, associate policy analyst with the Migration Policy Institute.

Here's a look at how immigration enforcement is playing out across the federal government.

Immigration as a State Department priority 

Trump has promised “mass deportations,” which means not only arresting as many people in the U.S. illegally as possible but also figuring out how to remove them from the country.

That's where the State Department comes in.

Marco Rubio's first international trip [5]as secretary of state was to Central America, and he came away with deals for Guatemala, Panama and El Salvador to accept deportees from other nations. That helps officials address a key barrier: Many countries don't take back their citizens when deported.

Other issues were part of Rubio's trip — Chinese influence on the Panama Canal, for example — but migration was at the top of his agenda.

Tom Warrick, a former top DHS counterterrorism official who's now at the Atlantic Council, a nonpartisan think tank, said that wasn't always the case.

“For DHS, for ICE in particular, it’s, 'What do you need foreign countries to do? OK. State Department, it’s now your requirement to go out and make that your top priority,'” he said.

Trump's pick for Rubio's deputy, Christopher Landau, was ambassador to Mexico from 2019 to 2021 and played a key role in implementing the Remain in Mexico[6] policy, and, like Rubio, speaks fluent Spanish.

That's another sign of immigration's importance, said Mark Krikorian, executive director of the Center for Immigration Studies, which advocates for less immigration.

“Just the fact that the two of them are the No. 1 and 2 people in the State Department suggests the administration’s refocus on our own backyard," Krikorian said. "And immigration control is a big part of that.”

And from the State Department’s Diplomatic Security Service, 600 agents were deputized Tuesday by Homeland Security Secretary Kristi Noem[7] to assist in “arresting and deporting” people in the country illegally.

A ramped-up military role 

The Defense Department has played a border security role[8] since the administration of George W. Bush[9], with active-duty and National Guard troops sent to the U.S.-Mexico border to back up Border Patrol agents.

But this administration has taken early high-profile steps that go further.

The Pentagon has beefed up the number of troops at the border and promised more. Instead of relying solely on Immigration and Customs Enforcement charter flights, Air Force planes have been used to carry out 26 deportation flights — a rare step.

In his first trip[10] as secretary of defense, Pete Hegseth[11] visited troops on the border and said all department assets were on the table to assist. That includes Guantanamo Bay[12], where officials have sent 13 deportation flights of migrants they call “the worst of the worst” — though they've given little information about their identities or any crimes.

The administration’s Jan. 20 executive orders[13] outline other possible changes for the Defense Department.

Trump’s declaration of a national emergency at the southern border indicates he may redirect money for border wall construction, something he did during his first term[14]. And he gave Hegseth and Noem 90 days for recommendations on what's needed to take complete control of the southern border, including whether to invoke the Insurrection Act. That would allow officials to circumvent rules limiting military involvement in civilian law-enforcement duties.

Warrick said the general public has largely been OK with the Pentagon taking part “behind the scenes," but that might change if the role becomes more visible.

“There’s a very clear line that exists in the mind of the American people who do not want to see uniformed military people arresting migrants, especially in their homes and and schools and houses of worship,” Warrick said.

Justice Department and ‘sanctuary cities’ 

A few days after being sworn into office, Attorney General Pam Bondi[15] took aim at what the administration considers a key impediment: cities and states that don't work with immigration enforcement to identify and deport people in the country illegally. These are often called sanctuary cities.

Bondi announced a lawsuit targeting New York's attorney general and governor over a state law allowing people who might not be in the U.S. legally to get driver’s licenses.[16] Days earlier, another Justice Department lawsuit targeted Chicago and Illinois[17], alleging that their “sanctuary” laws[18] ” thwart federal efforts.

“This is a new DOJ,” said Bondi, appearing with Tammy Nobles, whose 20-year-old daughter Kayla was killed in 2022 by a man who entered the U.S. illegally from El Salvador.

Agents from the Federal Bureau of Investigation; Bureau of Alcohol, Tobacco, Firearms and Explosives; and Drug Enforcement Administration have taken part in high-profile ICE operations to find and arrest migrants in the country illegally.

Putzel-Kavanaugh said those agencies used to play roles in line with their priorities, such as pursuing a drug charge. Now, it's a “much more highly publicized and much more singularly focused agenda for the DOJ,” she said.

The administration also has tapped the Department of Justice's Bureau of Prisons[19] to hold detained migrants, beefing up Immigration and Customs Enforcement's detention capacity.

Other departments are involved, too 

Even the Internal Revenue Service[20] has been brought in as part of immigration enforcement — Noem asked the arm of the Treasury Department to help target employers engaged in unlawful hiring practices and to monitor immigrants in the country illegally.

And the administration this week suspended a program[21] run out of the Department of Health and Human Services that provides legal services to migrant children traveling alone.

What might be next? 

Krikorian said he's looking for the Department of Labor to take on a greater role, especially as worksite enforcement becomes a bigger administration strategy.

And for the Education Department[22], with Elon Musk's[23] Department of Government Efficiency accessing federal student loan data that includes their parents' citizenship status, student advocates worry the administration will use that information to identify people in the country illegally.

In the executive order signed Wednesday, Trump seeks to end “all taxpayer-funded benefits for illegal aliens,” but it wasn't clear which benefits would be targeted. People in the country illegally generally do not qualify except for emergency medical care. Children are entitled to a free K-12 public education regardless of immigration status under a 1982 Supreme Court ruling.

The order directs all departments and agencies to identify federal benefit spending that is inconsistent with a 1996 welfare law that denies most public benefits to people in the country illegally.

___

Associated Press writers Fatima Hussein, Collin Binkley and Michael Sisak contributed to this report.

© Copyright 2025 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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Elon Musk at the Future Investment Initiative institute Priority Summit

Members of billionaire Elon Musk's so-called government efficiency team have arrived at the Pentagon amid unprecedented incursions at other agencies across the federal government, but on Wednesday had yet to access the military's vast systems and data.

A defense official who was granted anonymity to speak candidly on the matter said that members of the Department of Government Efficiency, or DOGE, were conducting onboarding procedures like getting IT access set up this week. Musk's team of young aides with tech backgrounds has already accessed federal databases holding the sensitive information of millions of Americans, slashed agencies without Congress' consent, and triggered at least 11 lawsuits[1].

Musk and President Donald Trump have called the incursions part of cost-cutting measures, but with little oversight and transparency, it remains unclear how the sensitive data is being protected and whether the activity is legal. Defense Secretary Pete Hegseth told reporters last week[2] that he welcomed Musk and his team and that he believed they could find "billions of dollars" in savings within the military. On Friday, news outlets reported that DOGE officials had their first meetings at the Pentagon.

Read Next: Naval Academy Nixes Classes, Topics as Full Scope of Trump Diversity Ban Remains Unknown[3]

It is not clear what systems or databases the DOGE team will be granted access to as part of its work. At other agencies, the Trump administration has been secretive about what type of access Musk and his team were given, and the president brushed aside concerns over conflicts of interest for Musk, whose companies have billions of dollars in contracts with the federal government, including the Defense Department.

The DoD, with its roughly $850 billion budget, is the largest federal agency and holds much of the U.S.' most sensitive national defense information. It also includes more than 2 million service members, as well as facilities and programs at bases across the country and overseas that support them and their families.

As the team was getting ready to get started, The Washington Post reported Wednesday[4] that Hegseth also ordered the Pentagon to develop plans for cutting 8% from the defense budget every year for the next five years.

The effort to cut government spending by Musk, the world's richest man, has led to deep and brutal cuts that have gutted agencies like the U.S. Agency for International Development and the Consumer Financial Protection Bureau, which was created to protect Americans from unfair financial practices by banks and other financial institutions. The effort has also led to numerous court challenges and raised grave concerns from critics about its constitutionality[5].

The prospect of Musk and his team combing through the Pentagon budget also raises questions about how they will deal with conflicts of interests since the Defense Department is deeply connected to Musk and his companies.

Specifically, the U.S. government has paid Musk's company SpaceX billions in federal contracts -- around $17 billion since 2015 -- according to a government website that tracks federal spending[6].

Musk's space launch company has earned more than $5 billion in contracts just from the Defense Department since 2008, with a huge majority being spent by the Air Force[7] on launch services.

Neither Hegseth nor Trump expressed concern about the conflicts of interest in allowing a major defense contractor into Pentagon systems to access data and manipulate spending.

In an interview with Fox News' Sean Hannity[8] that aired Sunday, Musk simply assured Hannity: "I'll recuse myself."

Trump followed up by assuring Hannity that Musk "won't be involved" in any conflicts, without explaining how any official oversight would be handled and why Congress, which authorizes the defense budget, was not being consulted.

The pair did not say that any outside agency or authority would be involved in verifying the claims, but Trump did seem to acknowledge the possibility of Musk taking actions that would benefit him and his electric vehicle business Tesla.

"I said, 'Do the right thing' -- where they're cutting way back on the electric vehicle subsidies," Trump said.

Despite Musk's promises and claims to transparency, last week the White House told reporters that the billionaire will not be filing a public financial disclosure, allowing the full scope of his financial interests to remain hidden.

Related: 'We Welcome DOGE': Hegseth Says Musk Can Find Billions of Dollars in Pentagon Cuts[9]

© Copyright 2025 Military.com. All rights reserved. This article may not be republished, rebroadcast, rewritten or otherwise distributed without written permission. To reprint or license this article or any content from Military.com, please submit your request here[10].

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