Crowds holding posters of China's Communist Party leader Mao Zedong fill the street of a city in China, celebrating the triumph of the Communist revolution. Since seizing power amid civil war in 1949, the party has undergone a tumultuous history, but president and party leader Xi Jinping is emphasizing the country’s rise to economic, military and diplomatic over the past four decades since reforms were enacted. (Photo by AP Photo/File)
