Transatlantic TakeWASHINGTON—At the 2012 NATO Summit in Chicago, then U.S. Secretary of State Hillary Clinton famously said, “I believe this should be the last summit that is not an enlargement summit.” She was to be immediately disappointed: the subsequent NATO summit in Cardiff passed without new members. Now, for the first time in seven years, a new country is being invited to become a member state. NATO’s proclaimed “open door policy” under Article 10 was reinforced this week with the invitation to Montenegro to join the Alliance. This is a significant moment for the pursuit of security and stability in …read more