INDIANAPOLIS (Reuters) – President Donald Trump told the National Rifle Association on Friday he was pulling the United States out of an international arms treaty signed in 2013 by then-President Barack Obama but opposed by the NRA and other conservative groups.

Trump told members of the gun lobby at an annual meeting he intends to revoke the status of the United States as a signatory to the Arms Trade Treaty, which was never ratified by the U.S. Senate.

“We’re taking our signature back,” Trump said to thousands of cheering attendees, many wearing red hats emblazoned with the Republican president’s “Make America Great Again” slogan.

On Twitter, Trump called the decision a defense of “American sovereignty.” In reversing the U.S. position on the pact, he wrote,