(US Air Force photo by Airman First Class Daniel A. Hernandez)

Hundreds of troops previously stationed in Texas and Arizona have been moved to California to support border patrol agents securing the border against the thousands of Central American migrants camped nearby.

"In coordination with CBP, it was determined that forces including military police, engineering and logistics units could be shifted from Texas and Arizona to support the CBP requirements in California," US Northern Command told Business Insider, confirming an earlier report from The Washington Post.

"Approximately 300 service members have been repositioned to California over the past few days."


In November 2018, there were 2,800 troops in Texas, 1,500 in Arizona, and another 1,500 in California. Over a period of several weeks, the active-duty military personnel deployed to these states ran over 60,000 feet of concertina (razor) wire.

Now, after the recent shift, there are 2,400 troops in Texas, 1,400 in Arizona, and 1,800 in California. The total number of active-duty troops at the border has decreased by about 200, dropping from 5,800 to 5,600, NORTHCOM explained to Business Insider, noting that changes are the result of mission assessments carried out in coordination with CBP.

U.S Army Soldiers install steel runway planking for fence along the U.S./Mexico border.

(U.S. Air Force photo by Master Sgt. John Nimmo, Sr.)

While the number of troops deployed to the southern border has decreased, the number of troops serving in California is on the rise. Thousands of migrants have been pouring into Tijuana, which is where more than 5,000 migrants, possibly many more, are camped.

Border patrol agents clashed with hundreds of migrants Nov. 25, 2018, at San Ysidro, one of the largest and busiest ports of entry on the US-Mexico border, after what began as a peaceful protest meant to call attention to the plight of asylum seekers turned into a mad and chaotic dash.

Some migrants attempted to enter the US illegally by forcing their way through and over barricades while others threw rocks at US border agents after they overwhelmed Mexican authorities. The crowd of migrants was driven back by rubber pullets and tear gas.

More than one hundred migrants have been arrested by authorities in the US and Mexico. Many of those who have been detained face deportation, meaning that their weeks-long journey to the US will end where it began.

The role of US troops at the border has been in debate over the past few weeks, with critics of the president calling the deployment a waste of time, resources, and manpower.

While active-duty troops deployed to the border were initially limited to laying razor wire, the White House recently authorized US troops to use force, including lethal force if necessary, to defend CBP agents against violence.

This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.