Russian gas supplies to Europe via Ukraine are to end on Wednesday, when a five-year deal between Ukraine's gas transit operator Naftogaz and Russia's Gazprom expires... (had given the EU a year to prepare)... ...The European Commission said the continent's gas system was "resilient and flexible" and that it had sufficient capacity to cope with the end of transit via Ukraine... ...Russia has transported gas to Europe through Ukraine since 1991... ...Once the Ukrainian transit route is cut off, the Black Sea's TurkStream - which reaches Turkey, Hungary and Serbia - will be the only (pipeline) Russian gas supply to...