The Biden administration has approved sending 1,500 active-duty U.S. troops to the southern border in the coming days amid concerns that tens of thousands of migrants will surge into the country once Title 42 is lifted, sources tell Fox News.

According to Fox News, The U.S. soldiers will come from a variety of active duty Army units and will serve for 90 days in mostly administrative and transport roles to free up law enforcement and Border Patrol, according to two senior U.S. officials familiar with the deliberations.

The 90-day deployment is not inconsistent with support to the border going back to the George W. Bush administration, National Security Council spokesman John Kirby said. The Pentagon said the Department of Homeland Security requested the troops, which will arrive as early as May 10.

Officials said the troop deployment would be similar to deployments to the border ordered by former President Donald Trump. The troops would be armed for self-defense but would not assist with law enforcement.

“For 90 days, this 1,500 military personnel will fill critical capability gaps, such as ground-based detection and monitoring, data entry, and warehouse support, until CBP can address these needs through contracted support,” Pentagon press secretary Brig. Gen. Pat Ryder said in a statement.

“Military personnel will not directly participate in law enforcement activities. This deployment to the border is consistent with other forms of military support to DHS over many years.”

Customs and Border Protection (CBP) has previously warned migrants that illegal entry into the U.S. “will result in removal.” The Biden administration is encouraging migrants to use the CBP One app to schedule appointments at points of entry where their asylum claims can be processed.

The reality of the government’s response to the migrant crisis doesn’t reflect the Biden administration’s official position. While many are returned currently due to the Title 42 order – which allows for the rapid removal of migrants at the border due to the ongoing COVID-19 pandemic – not all who enter illegally have been returned via the order.

CBP statistics show that only about 46% of migrant encounters at the border resulted in a Title 42 expulsion. Meanwhile, Homeland Security Secretary Alejandro Mayorkas testified to Senate lawmakers last month that of the nearly 1.3 million migrants in FY 2022 who were processed via Title 8, only about 360,000 were deported. The White House said Tuesday that troops to the border “would not be necessary if Congress would act.”