Chinese and Italian police officers patrol the Summer Palace in Beijing, capital of China, July 23, 2018. Eight Italian police officers on July 16 began patrolling tourist sites in four Chinese cities, with their local counterparts. The joint patrol, the second such exercise between Chinese and Italian police in China, will last two weeks. The four cities are Beijing, Shanghai, Hangzhou and Xi'an. (Xinhua/Ju Huanzong)