Sun was in exile not only in Japan, but also in Europe, the United States, and Canada. He raised
Chinese Legation in London, where the Chinese Imperial secret service planned to kill him. He was released after 12 days through the efforts of James Cantlie, The Times, and the Foreign Office, leaving Sun a hero in Britain. James Cantlie, Sun's former teacher at the Hong Kong College of Medicine for Chinese, maintained a lifelong friendship with Sun and would later write an early biography of Sun.A "Heaven and Earth Society" sect known as Tiandihui has been around for a long time. The group has also been referred to as the "three cooperating organizations" as well as the triads. Sun Yat-sen mainly used this group to leverage his overseas travels to gain further financial and resource support for his revolution.