The battle for China between Communists and Nationalists left Mao the victor in 1949. Defeated Nationalist leader, Chiang Kai Shek, fled with his troops to the island of Taiwan, but he vowed to return. Hau Pei Tsun is a former chief aide to Chiang Kai Shek. Now 99 years old, he speaks to Rebecca Kesby about his memories of the controversial leader, and their fight for the soul of China.Photo: General Chiang Kai Shek, cerca 1943 (Keystone/Getty Images)