A Chinese warship conducts gun firing exercises during a drill with Russia in the Baltic Sea. The aim of the Joint Sea 2017 drills, which kicked off on Saturday and will last until July 28, is to carry out joint rescue missions and ensure maritime economic activities. The ships, which were divided into two tactical groups, fired their secondary guns at floating targets set by the Russian side. (Photo: China News Service/Wang Xiujun)
Chinese Navy soldiers raise a signal flag during a drill with Russia in the Baltic Sea. The aim of the Joint Sea 2017 drills, which kicked off on Saturday and will last until July 28, is to carry out joint rescue missions and ensure maritime economic activities. (Photo: China News Service/Wang Xiujun)
A Russian warship participates in a drill with the Chinese Navy in the Baltic Sea. The aim of the Joint Sea 2017 drills, which kicked off on Saturday and will last until July 28, is to carry out joint rescue missions and ensure maritime economic activities. (Photo: China News Service/Wang Xiujun)
A helicopter flies past Chinese Navy destroyer Hefei during a drill with Russia in the Baltic Sea, July 25, 2017. Chinese and Russian warships went into formations to protect against air attack during the drill. (Photo: China News Service/Wang Xiujun)
A helicopter flies past a Chinese Navy destroyer during a drill with Russia in the Baltic Sea, July 25, 2017. Chinese and Russian warships went into formations to protect against air attack during the drill. (Photo: China News Service/Wang Xiujun)
