China has begun operating a new air force base in Laos, marking another step in Beijing’s efforts to establish military footholds abroad and project power into Southeast Asia. 中国已开始启用位于老挝的一座新空军基地。这标志着北京在海外建立军事据点、向东南亚投射军力的努力又迈出了一步。 Satellite images released…