China has now formally commissioned its first catapult-equipped aircraft carrier, the Fujian, into service. The commissioning ceremony put particular emphasis on the ship’s electromagnetically-powered catapults, with President Xi Jinping shown pressing the launch button inside the control ‘bubble’ built into the flight deck. Fujian is also China’s first carrier that is not based on a Soviet design. This all notably comes after Trump recently pledged to sign an executive order that would compel the U.S. Navy to go back to using steam-powered catapults.