and EU membership. Short of the
occupation of the country and the imposition of a Russia-friendly parliament, one cannot readily imagine Ukrainian
law-makers mustering the two-thirds majority necessary for a constitutional change to this effect. Previously, Russia had sought a legally binding undertaking from NATO, or the US, excluding NATO membership for Ukraine and indeed other former Soviet states that have not joined yet. However, NATO ‘s ‘open door’ policy is supported in international
law, which prohibits threats or pressure on states in order to determine their foreign policy or...