China announced sanctions on Thursday against two US defense companies that Beijing believes are supporting arms sales to Taiwan. According to the AP news agency, the assets of General Atomics Aeronautical Systems and General Dynamics Land Systems in China will be frozen. In addition, their company executives will not be allowed to enter China. The continued US arms sales violate the one-China principle, interfere in China’s internal affairs and undermine China’s sovereignty and territorial integrity, the Chinese Foreign Ministry stated.