AP
FILE - In this Nov. 9, 2017 file photo, an American flag is flown next to the Chinese national emblem during a welcome ceremony for visiting U.S. President Donald Trump outside the Great Hall of the People in Beijing. China has criticized a U.S. government report that portrays Beijing as a potential nuclear adversary and called on Washington to honor its commitments to reduce its own arsenal. The Defense Ministry on Sunday, Feb. 4, 2018, said China's military activities are defensive and its nuclear forces are the "minimum level" required for its security. A ministry statement expressed hope the United States will "abandon a Cold War mentality" and "shoulder its special and prior responsibility for its own nuclear disarmament." (AP Photo/Andy Wong, File)