'US needs to use China in North Korean nuclear issue' Posted : 2021-02-25 16:29 Updated : 2021-02-25 20:10 Victor Cha, a senior adviser and the inaugural holder of the Korea chair at the Center for Strategic and International Studies (CSIS), speaks remotely, Thursday, during an online forum, titled "Free and Unified Korea: Options for the New U.S. Administration," hosted by the Global Peace Foundation at the Fairmont Ambassador Seoul hotel. Courtesy of Global Peace Foundation By Kang Seung-woo Former U.S. government officials who dealt with the North Korean nuclear issue for previous presidents have advised the new Biden administration to take advantage of China, the North's key ally and economic patron, in resolving the decades-long problem.