Washington is strengthening its ground-based midcourse defense system against North Korea’s missile threats as part of a “comprehensive missile defeat approach,” a senior U.S. defense official told Congress on Wednesday. 

John D. Hill, deputy assistant secretary of defense for space and missile defense, outlined the threat posed by Pyongyang’s expanding missile arsenal while testifying before the Strategic Forces Subcommittee of the House Armed Services Committee, the Department of Defense (DoD) said in a press release.