A military vehicle keeps vigilant in the street of Davos in Switzerland, where preparations are taking place for the upcoming 47th Annual Meeting of the World Economic Forum (WEF), on Jan. 16, 2017.(Xinhua/Xu Jinquan)
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A military vehicle keeps vigilant in the street of Davos in Switzerland, where preparations are taking place for the upcoming 47th Annual Meeting of the World Economic Forum (WEF), on Jan. 16, 2017.(Xinhua/Xu Jinquan)
