The United States should be very careful with granting licenses to other countries to manufacture its weapons, said President Donald Trump, commenting on the prospects of granting Ukraine permission to manufacture Patriot anti-aircraft missile systems. We have to be very careful about letting somebody build them," he told reporters. "We have, in the case of President [Vladimir] Zelensky, he'd like to have some Patriots. But when you give somebody the right, very complex weapons. Trump said that Washington had not agreed to supply Kiev with either Patriot system technology or Tomahawk cruise missiles, and questioned this possibility.