The U.S. government is asking people to avoid traveling to certain areas of the Texas-Mexico border due to security concerns.

The troops, part of a unit called the Texas Tactical Border Force, will join those already deployed to the border through Texas' Operation Lone Star.

Eye on Politics breaks down some of the biggest political stories grabbing headlines in North Texas and beyond.

More than 400 additional Texas National Guard troops arrived at the Texas-Mexico border Monday. Governor Greg Abbott deployed the troops to the Rio Grande Valley, where he said they'll work side-by-side with U.S. Border Patrol agents to keep migrants from illegally entering the country.

The state has vowed to assist the president in his efforts to revamp immigration. But Texas' biggest cities and school districts are more reluctant to help.

Texas Gov. Greg Abbott said the additional troops will work alongside federal border agents amid the Trump administration's crackdown on immigrants.

Texas Governor Abbott mobilizes the Tactical Border Force to reinforce security along the Texas-Mexico border in collaboration with federal authorities.

U.S. officials have put several Mexican border towns near Texas under the highest-level travel advisory amid gun battles, kidnappings and IEDs in the area.

Local leaders in Texas and New Mexico are voicing their concerns over President Donald Trump's decision to temporarily freeze federal grants and loans.

The warning was issued because of "increasingly frequent gun battles" and the discovery of "improvised explosive devices (IEDs)."

The Texas governor said the additional troops will work alongside federal border agents as part of Trump's efforts to seize the offensive.

President Trump declared an emergency at the southern border, and as a result, there have already been many changes to policy. At the Texas Capitol, a fight is brewing between Democrats and most Republicans after lawmakers proposed spending $1 billion on a school choice program that would give taxpayer money to students so they can attend public school.