The Marine Corps is quietly monitoring sections of the US-Mexico border to stop migrants and drug traffickers
Cpl. Victoria Ross/US Marine Corps
Cpl. Victoria Ross/US Marine Corps
- For over a decade Marine Ground Sensor Platoons have quietly deployed to the US-Mexico border to train for combat operations abroad, and their training has real world consequences for those crossing the border.
- President Trump's crackdown on illegal immigration is quietly supported by the Marine Ground Sensor Platoons that surveil wide sections of the border.
- These missions are ideal for Ground Sensor Platoons, which are made up of small three- to four-man teams who stealthily advance ahead of the main troops to track enemy movements in a deadly game of cat and mouse.
Despite being infantry Marines, the weapons of choice for Ground Sensor Platoons aren't bullets. The Tactical Remote Sensor System, or TRSS, is a suite of sensors, cameras, re-transmission devices, and monitoring equipment that are used to track enemy movement. The sensors are sensitive enough to detect how many people may be walking nearby, what direction they're traveling, and can even differentiate between different types of vehicles. Some of the sensors are equipped with day and night imaging capability, allowing Marines to identify the exact nature of their target. And like most equipment fielded by the Marine Corps, the system can take a beating: the Corps claims the sensors and relay equipment can operate autonomously for up to 30 days.Advertisement
Along the US-Mexico border, small teams of Marines are using a suite of advanced sensors and remote monitors to assist the US Border Patrol in scanning the most vulnerable sections of the untamed border. These Marines belong to specialized units called Ground Sensor Platoons, and for over a decade have been quietly partnering with the US Border patrol to help agents catch drug traffickers and migrants who cross illegally into the United States from Central and South America.
All of this makes the Ground Sensor Platoon an important partner to the US Border Patrol. And despite some states withdrawing their National Guard units from the region during President Donald Trump's immigration crackdown earlier this summer, the Marines show no sign of slowing down: according to photographs released by the Department of Defense, GSP Marines have been in the field with US Border Patrol as recently as March of this year.
While the Marines participate in border patrolling in a purely observational capacity, their presence has in the past directly boosted the Border Patrol's ability to bust drug traffickers and apprehend people suspected of crossing the border illegally. Due to the realism of these missions in terrains similar to Iraq and Afghanistan, one former Marine called it "the best possible training" for the dangerous missions these platoons conduct into enemy territory.According to Customs and Border Patrol data, in 2017 Border Patrol officers apprehended 303,916 people attempting to cross illegally in the Southwest sector, which stretches from California to Texas. Former President George W Bush's administration oversaw the construction of almost 700 miles of barriers on the US-Mexico border, and President Donald Trump continues to pledge to build a wall across the thousand or so miles without a physical barrier. The Department of Homeland Security has continued to extend and expand the US Border Patrol's ability to monitor the border with drones, CCTV, and other surveillance methods, but there are still gaps. In 2015, for instance, agents stopped 444,825 migrants while an estimated 200,000 migrants got by them and successfully entered the US illegally.
Joint Task Force-North, Customs and Border Patrol, and the US Marine Corps declined to repeated requests for interviews and comment on these operations. JTF-N and the Marine Corps cited their policy of not commenting on ongoing missions, while Customs and Border Patrol did not respond to phone calls or e-mails.
Courtesy Michael Vogel
In 2004, Michael Vogel was a young infantry Marine fresh from boot camp, sitting in a squad bay in School of Infantry - East in Camp Geiger, NC. Instructors asked if anyone would be interested in volunteering for a special unit, one that would work behind enemy lines to give advance warning of incoming attacks or IEDs. Unlike infantry platoons of 40 or more Marines, this special unit worked in four-man teams with highly specialized surveillance equipment. Vogel volunteered, intrigued by the idea of going out in front of conventional infantry units. After three months of additional intensive training in topography, equipment specs, and surveillance techniques, he reported to the 4th Ground Sensor Platoon based in Mobile, Alabama.
The Ground Sensor Platoons evolved from a Vietnam War-era remote sensor program whose success during the battle of Khe Sahn showcased how important early notice of enemy movement could be. During the wars in Iraq and Afghanistan, Ground Sensor Platoons became invaluable for American troops struggling to maintain control over large areas.Soon after his arrival to 4th GSP, a squad leader told Vogel to prepare for upcoming training, one that promised real world conditions for the platoon to hone their skills before heading to battlefields in Iraq or Afghanistan. Their enemy for this operation would not be green targets on a shooting range, or other Marines pretending to be insurgents. For the next few weeks, their targets would be drug cartels and human traffickers moving north across the US-Mexico border in southern California. Their mission: help the US Border Patrol stem the tide of drugs pouring into the US using their surveillance equipment. As Vogel and his platoon sat through briefings on drug cartels from Central and Latin America, he focused on the mission. "My thoughts were on the terrain," he recalled, "it looked just like the mountains of Afghanistan." Advertisement
For the overworked and undermanned US Border Patrol, the opportunity to utilize military-grade surveillance equipment operated by Marines frees more Border Patrol agents to catch smugglers and undocumented migrants moving north. GSP Marines and US Border Patrol have conducted joint operations along the entire length of the border, and frequently work in one of the most controversial border sectors where a majority of illegal border crossings occur: the Rio Grande Valley.
In 2008, Vogel and the rest of 4th GSP arrived at a Customs and Border Patrol base of operations in Texas. "When we landed we were introduced to the lead Border Patrol agent at the hangar for the Border Patrol Air Mobile unit, which is who we worked with. It was great, a lot of the guys we worked with were veterans, really professional guys," Vogel told Business Insider in a recent phone interview. "They knew what was up, our higher ups had coordinated with them and they set up a tactical operations center for us in the hangar. We slept side by side with these guys for the entire operation."Advertisement Courtesy Michael Vogel
Courtesy Michael Vogel
Even as a young Marine, Vogel could tell the Border Patrol was struggling to keep up with the influx of humans and drugs crossing into America. "It felt like they were undermanned, they needed routes covered that they just couldn't cover with their personnel." The Border Patrol agents spoke openly about their predicament, admitting "they just couldn't keep up with what was going on out there," as he recalled. During his first time on the border with CBP, Vogel estimated that the Marines passed on roughly 50 to 100 sensor reports a week to their CBP partners, a number that "only increased" during later joint operations in the Rio Grande Valley.
Vogel's platoon worked with the CBP three times before he deployed to Iraq in 2008 and Afghanistan in 2010. On each joint operation, the Border Patrol put Mr. Vogel and the GSP Marines to work as soon as they touched down in Texas. "That first week is balls to the wall, just getting all your equipment out there. Then you're going to a 6 hours on, 6 hours off rotation in the TOC." The TOC, which stands for Tactical Operations Center, is where GSP Marines keep a constant watch on information feeding into monitors from their sensors, whether in Texas or on the battlefield. Vogel remembered Border Patrol agents wanted the Marines to focus on drug interdiction. Unlike people risking their life to come to America, who often come across the border with little more than the shirt on their back and a bottle of water, Marines were on the lookout for individuals or groups of people carrying large packs that might smuggle drugs. Once located, the Border Patrol could dispatch agents to go out and investigate."Any groups that we saw on our imaging, we had a Border Patrol agent with us in the TOC, and they would call and let their agents know in the field and they would find out what was there." Vogel made sure to note that the Marines did not go in with the Border Patrol teams to investigate what their sensors picked up, nor did the Marines interact with anyone found crossing the border. "It was firm, in stone: You do not interact with anybody. When we were in the field it was always at night." And if the Marines came upon someone in the desert while emplacing their sensors? "We would get out of there, or we would just stay where were. We always had a BP agent with us in case something like that happened, and BP would pull whoever it was to the side and deal with whatever was going on with them separately. They really wanted to keep us out of sight, out of mind." Advertisement
For Vogel, the joint GSP-CBP operations were "the best possible training that we could've gotten before deploying overseas. Dealing with the terrain, trying to get our equipment to communicate through the mountains, it was brutal. For me as a Lance Corporal it was an eye opener, definitely an eye opener. It was a good working relationship both ways, we learned a lot and were able to help them cover routes that they were struggling with."
Courtesy Michael Vogel
The partnership between US Marines and US Border Patrol is part of a long standing effort by Joint Task Force-North, a DoD task force based in Fort Bliss, Texas. The task force pairs law enforcement groups with military units that can best assist them on counter-terror and homeland security missions. The military has a long history of being deployed to the border, but after a 1997 incident in Texas when a Marine killed a US citizen herding goats, the military drastically reduced its presence in the area. The task force in charge of coordinating military and law enforcement efforts at the time, Joint Task Force-6, was re-branded as Joint Task Force-North with a new pledge to ensure similar incidents never occurred again, while continuing the military's coordination with law enforcement agencies.
After some states have pulled their National Guard units from the border in protest of a White House policy to separate detained parents from their children, GSP Marines have continued operations. According to photos released by the Department of Defense, it appears that Ground Sensor Platoon Marines have been working with US Border Patrol in Texas as recently as late March.
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