The Trump administration is taking the unusual step of deploying a Navy warship off the waters of the U.S. as part of its broader crackdown on security and migration along the Mexico border.

The USS Gravely, an Arleigh Burke-class guided-missile destroyer, has been deployed to the U.S. southern border to enhance the country’s border security framework, with a specialized Coast

The vessel is commonly used in overseas missions. The Coast Guard typically takes a lead role in security missions at sea close to the United States.