What was promised
During a rally in Dubuque Iowa on 20th September 2023 Trump stated "we must use any and all resources needed to stop the invasion, including moving thousands of troops currently stationed overseas, guarding other people's borders. We guard other people's borders, but we don't guard our own."
It was included in the republican party platform in July 2024. "We will use all resources needed to stop the Invasion - including moving thousands of Troops currently stationed overseas to our own Southern Border." No specifics were given on troop numbers or where they may be moved from.
What's happened since
Day one. Trump declared a state of emergency along the southern border on his first day in office the 20th of January 2025. An executive order directed the Secretary of Defense to provide US Northern Command with "the mission to seal the borders." AP reported that there were already around 2,500 national guard/reserve members on the border. There were no active duty troops. Officials announced two days later that the department of defense would be sending 1,500 active duty troops to the border.
The build-up. The first groups sent to the border came from installations within the US. They consisted of military police mainly from Fort Cavazos and Fort Bliss Texas, Fort Drum NY, Fort Carson CO and other locations. Along with around 500 marine engineers. Military.com provided a list of units sent to the border. Around 2,400 troops from a Stryker Brigade based out of Fort Carson CO were announced by US Northern Command in March. US Northern Command states over 10,000 troops have or are being deployed to the border. This is in addition to the 2,500 that were already there. Beginning in April of 2025 parts of the border were designated "National Defense Areas" which allowed troops to arrest those who cross onto that territory (explained in Insurrection Act).
Rotations. More units have continued to rotate through the mission. As of May 2026 there are approximately 8,700 troops on active duty orders in the border area per US Northern Command. The army announced units from the 101st Airborne Division and 1st Armored Division would be replacing some of the current troops on the border, this according to Task & Purpose. In August a spokesperson for the border mission said there were 8,000 troops on the border. The Department of Defense said they have deployed over 20,000 troops to the border area, as reported by CBS News. Hundreds of troops were redeployed to the Rio Grande Valley area of the border in early October after Coast Guard members were fired upon from Mexico on the 26th of September. A US Northern Command spokesperson told Border Report the troops were "moved from various other locations along the southern border". Not sent to the border.
Troops abroad. Troops have been brought home from Europe. But we have not found any to be sent to the border. Task & Purpose reported in October 2025 that a brigade from the 101st Airborne Division was not being replaced after returning to the US. Approximately 700 of the brigades troops were located in Germany, Romania and Poland. According to the New York Times. US Army Europe and Africa called it "a positive sign of increased European capability and responsibility"; the outlet noted that it came as the Pentagon shifted its focus to the border and counter-narcotics missions. Defense Secretary Pete Hegseth announced in May 2026 that up to 5,000 troops would be pulled from Germany over the next 6-12 months. The Pentagon said this was after a "full assessment" of US military presence in Europe. This announcement came shortly after German Chancellor Friedrich Merz stated that the US was "humiliated" by Iran. And Trump responded by saying "we'll be pulling back much more than 5,000 troops." NBC News reported the Pentagon was looking into a proposal to remove 25,000+ troops from Europe in September. Hegseth stated some of the troops coming home from Europe would be sent "back home" to be placed at a future installation or "positioned in a different part of the Western Hemisphere" to target cartels, as per The Hill. There was no mention of them going to the border in these statements. I can find no reports of any troops sent directly from a foreign country to the border.
The administration's account. The White House says Trump "deployed thousands of military personnel to protect the southern border against invasion". Border Patrol recorded fewer than 240,000 apprehensions at the southern border in the 2025 fiscal year, down from 1.5 million the year before, CBS reported from agency data.
Where it stands now
Partly delivered. Troops have been sent to the border. Over 10,000 in addition to the 2,500 already there per US Northern Command. With 8,000 currently on the border as of August 2026. Their mission has also expanded. However these troops have not been pulled from foreign countries. Which is what the statement implied. Troops have been reduced in Europe. But were attributed to European countries increasing their capabilities and a reassessment of US military presence in Europe. Hegseth has since said some may be sent "back home" or to target cartels in the Western Hemisphere. But not the border in these statements.
Opinion
This one's a bit wishy-washy. There's no doubt that the numbers of military personnel on the southern border have increased dramatically. At the same time, the number of border crossing look to have decreased dramatically. Quite whether that's down to the increased military presence or the infamous brutality being exhibited by ICE agents is anyone's guess.
In any case, border crossings are waaaay down so nit-picking about whether troops were brought home to guard the southern border or not seems a little trite.