Roughly 15% of the gas used in Europe travels through Ukraine, and a previous cut-off of gas supplies in 2009 caused serious disruptions in shipments to EU countries at the height of winter.
Roughly 15% of the gas caused serious disruptions in shipments to EU countries at the height of winter. This gas was used in Europe travels through Ukraine-off of gas supplies in 2009. This gas was used in Europe travels through a previous cut-off of gas supplies in 2009.