(NewsNation) President-elect Donald Trump confirmed Monday morning he plans to use “military assets” to remove migrants accused of entering the U.S. illegally.

In a post on his social media platform, Truth Social, Trump shared a post by Judicial Watch president John Fitton which read, “Reports are the incoming @RealDonaldTrump administration prepared to declare a national emergency and will use military assets to reverse the Biden invasion through a mass deportation program.”

Trump commented “True!”

It’s unclear what military assets Trump intends to use, but he’s mentioned invoking the Alien Enemies Act of 1798 to expedite migrant removal in the past. Critics argue the law is out of date and wince at its most recent use during World War II to hold Japanese-Americans in internment camps without due process.

Immigration was a top issue in the 2024 presidential campaign, and Trump has promised to stabilize the southern border after more migrants crossed during the Biden administration than any other in history.