Regional security, the war on terrorism and the dual enlargements / Clive Archer -- Rafting Nilas / Frank Möller -- Lessons from the north for the EU's 'near abroad' / Marius Vahl -- Constitutionalising the European Union, constructing EU borders / Thomas Christiansen -- Westphalian, imperial, neomedieval / Christopher S. Browning -- Russia and the challenges of regional cooperation in Northern Europe / Alexander Sergounin -- EU-Russian regional cooperation / Sergei Prozorov -- Accounting for the role of cities in regional cooperation / Pertti Joenniemi -- The paradiplomacy of St. Petersburg / Stanislav Tkachenko -- Transnational forces, states, and international institutions / Carl-Einar Stålvant