Donald Trump believes American troops are afraid to fight for fear of violating the Geneva Conventions, he said Wednesday.

“The problem is we have the Geneva Conventions, all sorts of rules and regulations, so the soldiers are afraid to fight,” Trump said at an afternoon town hall during remarks on torture.

“We can’t waterboard but they can chop off heads,” Trump said, referring to the United States and the Islamic State, respectively. “I think we’ve got to make some changes, some adjustments.”

The Geneva Conventions, adopted after World War II, govern the treatment of prisoners of war and civilians.

Trump has called for changing laws that govern interrogation techniques to “bring back a hell of a lot worse than waterboarding.”