BELGRADE, June 20, 2016 (Xinhua) -- A policeman salutes to the audience during celebrations of Police Day in Belgrade, Serbia on June 20, 2016. (Xinhua/Predrag Milosavljevic)
BELGRADE, June 20, 2016 (Xinhua) -- A policeman salutes to the audience during celebrations of Police Day in Belgrade, Serbia on June 20, 2016. (Xinhua/Predrag Milosavljevic)