NATO Secretary General Jens Stoltenberg sounded the alarm over China’s increasing nuclear capabilities on Sept. 6, while calling on Beijing to join international efforts to limit nuclear arms. “China’s nuclear arsenal is rapidly expanding with more warheads and more sophisticated delivery systems,” he said. “Moreover, China is building a large number of missile silos, which can significantly increase its nuclear capability.” “All of this is happening without any limitation or constraint and with a complete lack of transparency,” he added. He voiced the concerns during a speech at the annual NATO conference on arms controls in Copenhagen on Monday. U.S. officials have been voicing similar concerns about China’s nuclear stockpile in recent months. In early August, U.S. Secretary of State Antony Blinken said that Beijing “has sharply deviated from its decades-old nuclear strategy based on minimum deterrence” with its rapid growth of nuclear arsenal. Blinken’s warning came after discoveries by …