In a significant geopolitical shift, Ukraine has ceased the transit of Russian natural gas through its territory, the first time since the collapse of the Soviet Union in 1991. Ukrainian President Volodymyr Zelensky stated that the measure prevents Russia from profiting further, while Poland hailed it as another victory against Moscow. The European Commission announced preparedness for this development, though Moldova faces shortages. Gazprom confirmed the halt, attributing it to Ukraine’s refusal to renew a transit agreement. The situation poses challenges for EU countries reliant on Russian gas.