U.S. Defense Secretary Jim Mattis and his Chinese counterpart Wei Fenghe agreed Wednesday to bolster security dialogue to strengthen risk control, the Defense Ministry said, amid concerns over Beijing's growing assertiveness in the South China Sea.With relations between the two countries soured over a tit-for-tat trade dispute, the defense chiefs apparently tried to avoid conflict in the security field, although Mattis has criticized China's military buildup in the contested waters."China and the United States should live in harmony," Mattis said during his meeting with Wei in Beijing, addi…READ FULL ARTICLE