CLEVELAND, July 21, 2016 (Xinhua) -- Policemen guard outside the Quicken Loans Arena where the Republican National Convention is being held in Cleveland, Ohio, the United States, July 20, 2016. Some 5,500 policemen were deployed around Cleveland to secure the four-day convention, during which more than 10,000 demonstrators are expected. (Xinhua/Yin Bogu)
