Ukraine's Energy ChallengeEUobserver: Gas war escalates as Russia halves Slovakia suppliesBy EUobserver.com. Published Oct. 3, 2014 at 7:56 pm Gas pipes at the gas compressor station in Velke Kapusany, Slovakia, on Sept. 2, 2014. Photo by AFPBRUSSELS - Russia has cut gas deliveries to Slovakia by half in a bad sign for EU efforts to broker a deal on Ukraine. Read the story here.