A police officer stands guard near the Hamburg Messe in Hamburg, Germany, on July 5, 2017. The German armed forces (Bundeswehr) have issued a warning for all soldiers stationed in Hamburg against violent attacks from protestors at the upcoming G20 summit, the newspaper Spiegel reports on Wednesday. While the police are responsible for security during the G20 summit, they will receive assistance, upon request, from the armed forces. (Xinhua/Luo Huanhuan)
