This month’s NATO summit takes place at a time of both peril and opportunity for the future of European security. The Wagner Group’s June 24 sprint from Rostov to the gates of Moscow dealt a fresh blow to criticism of NATO’s decision to extend a Membership Action Plan to embattled-yet-undaunted Ukraine. Indeed, the chaos on display as Wagner fighters shot down Russian military aircraft and blew through hasty roadblocks of sand-filled Kamaz trucks reemphasized the grave threat Russia poses to re