Withdrawal of all heavy weaponry, the release of all prisoners and the delivery of humanitarian aid to devastated cities in eastern Ukraine were also negociated. The protocol was signed by representatives of Ukraine, Russia, the rebels and the Organization for Security and Cooperation in Europe The Russian ambassador to Ukraine confirmed too the deal document. OSCE representatives were called to survey a more than 1000 prisoners from each part exchange. beginning as early as Saturday. U.S. President Barack Obama declared himself as skeptical that the rebels would follow through the deal. He predicted also that Russia will continue to violate Ukraine’s sovereignty and territorial integrity. On the other part, Friday, at the summit in Wales, NATO leaders approved plans to create a rapid response force to counter Russian aggression, with a headquarters in Eastern Europe.