Summary: China’s Premier Wen Jiabao expressed no support for proposed U.N. sanctions against ally North Korea over its alleged sinking of the South Korean warship Cheonan, declining to join other key nations in blaming Pyongyang. … One-year retrospective: One year ago today, on May 30, 2009 Aubrey Immelman reported that U.S. Defense Secretary Robert Gates warned North Korea that the United States would respond quickly if moves by the communist government threatened America or its Asian allies.