President Trump suggested Thursday he’s looking to expand the size of the U.S. nuclear weapons arsenal. Trump’s comment came during an interview with Reuters.

President Donald Trump: “It would be wonderful; a dream would be that no country would have nukes. But if countries are going to have nukes, we’re going to be at the top of the pack.”

The statement drew alarm from anti-nuclear activists, who fear it will touch off a new worldwide nuclear arms race.