Barack CNN has arrived in Europe for The Nuclear Security Summit at the Russia . An emergency G7 summit on the Ukraine crisis will be held on the sidelines of the nuclear summit . The immediate focal point will be an emergency meeting of the G7 which will take place at The Nuclear Security Summit ( NSS ) Monday and Tuesday in The Hague . Hammond says Obama will seek to find consensus on new sanctions against Hague . Obama sees enhancing global nuclear security as a key part of his legacy , Andrew Hammond says .
Barack CNN has arrived in Europe for The Nuclear Security Summit at the Russia . An emergency G7 summit on the Ukraine crisis will be held on the sidelines of the nuclear summit . Hammond says Obama will seek to find consensus on new sanctions against Hague . Obama sees enhancing global nuclear security as a key part of his legacy , Andrew Hammond says .