The first session of the group took place on 8 June 2014 and involved participation of the Ambassador of Russia to Ukraine Mikhail Zurabov, the Ambassador of Ukraine to Germany Pavlo Klimkin and the special representative of OSCE General Secretary Heidi Tagliavini.[4] There were three sessions of the group between 8 and 9 June, during which its participants discussed the peace plan that was proposed by the President of Ukraine Petro Poroshenko.[5]