ESTONIAN GREETING U.S. Defense Secretary Ash Carter, right, shakes hands with Mikk Marran, the permanent secretary of Estonian Defense Ministry, as he arrives in Tallinn, Estonia, June 22, 2015. Carter is in Europe to meet with European defense ministers and participate in his first NATO ministerial as defense secretary. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 667628-U-XPD19-384.jpg Photo Gallery