FILE - In this Feb. 5, 2020, file photo, Lockheed Martin's Robert Balserak, Lead Executive, Air Superiority Programs, explains the capabilities of the F-21 at the DefExpo in Lucknow, India. China announced Monday, Oct. 26, 2020 it will impose sanctions on U.S. companies including Raytheon, Boeing and Lockheed Martin for supplying weapons to rival Taiwan, a foreign ministry spokesman said Monday.(AP Photo/Rajesh Kumar Singh, File)