A protester holds posters during a demonstration against the Terminal High Altitude Area Defense (THAAD) in Seoul, South Korea, on April 27, 2017. South Korean people and religious figures gathered in central Seoul, where millions of people had demanded the impeachment of former President Park Geun-hye, for the removal of the Terminal High Altitude Area Defense (THAAD) from their territory and bring peace to the Korean Peninsula. (Xinhua/Yao Qilin)