"reassessment of NATO assets in Turkey" . "Ongoing NATO operation;" . "-led coalition" . "- Since 2012" . . "*(since January 2015)" . "* To protect southern Turkey from possible missile and chemical attacks from Syria" . "- Since 2015" . . "- Up to October 2015" . . . . "- Up to January 2015" . . . . "Unknown" . . . . "Operation Active Fence" . "Operation Active Fence" . . "2012-12-04" . . . . . "None" . . "*Since 2015" . . "Patriot missiles" . . . "AF TUR" . "*" . "Augmentation of Turkish air defences" .