Members of US 10th Army Air and Missile Defense Command stands next to a Patriot surface-to-air missile battery during the NATO multinational ground based air defence units exercise "Tobruq Legacy 2017" at the Siauliai airbase some 230 km. (144 miles) east of the capital Vilnius, Lithuania, Thursday, July 20, 2017. Deployment of US Patriot long-range missile system in Lithuania, demonstrates commitment to the security of Lithuania and adds to the strategic capabilities of the region. (AP Photo/Mindaugas Kulbis)

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