Russia and Ukraine failed to clinch an agreement on winter gas supplies as the Kremlin said it wants the European Union to guarantee payments as Russian warplanes flew military maneuvers on NATO borders.
Ukraine's Energy Challenge
Bloomberg Businessweek: Ukraine pro-EU parties wrangle amid no Russian gas deal
EU commissioner for Energy Gunther Oettinger (R) and Ukrainian minister of Energy Yuriy Prodan (L) speak during a press conference following their working session on June 25, 2014 at the EU headquarters in Brussels.
