ESTONIAN MEETING U.S. Defense Secretary Ash Carter meets with Mikk Marran, the permanent secretary of the Estonian Defense Ministry, to discuss matters of mutual importance at NATO's Cooperative Cyber Defense Center of Excellence in Tallinn, Estonia, June 23, 2015. Carter is in Europe to meet with European defense ministers and participate in his first NATO ministerial as defense secretary. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 629762-V-KFL87-118.jpg Photo Gallery