The Urengoy-Pomary-Uzhgorod pipeline was built in the Soviet era to carry Siberian gas to European markets. It became the main conduit to Ukraine’s border with Slovakia from Siberia, passing through the town of Sudzha — which is now under the control of Ukrainian military forces — in Russia’s Kursk region.

Industrial production has screeched to a halt in Transnistria, a breakaway region of Europe, after Russian gas flows through Ukraine came to an end.