Ukrainian transit gas deal to Europe ended on Jan. 1. For now, the most acute effects are being felt in a region called Transnistria, on the eastern edge of Moldova.

With transit routes through Ukraine for Russian gas cut off, a few EU countries now need to rethink their gas supply. For others – including Germany and Switzerland – the impact will be minimal.

The historic first marks a milestone in Washington’s bid to replace Russia as Europe’s top source of natural gas.

A renegade part of Moldova once boasted it would become a Russian-speaking Switzerland. Now without gas, its leader assured residents, “We will not allow a societal collapse.”

Russia will no longer transport gas to Europe via Ukraine’s pipelines, further limiting its ability to raise capital

Ukraine's move will deprive Russia of about $6.5 billion in annual revenue from gas sales to Europe, according to U.S. National Security Council spokesperson John Kirby.

This will clearly deprive Russia of about $6.5 billion in annual revenue from gas sales to Europe. It’s one of the biggest and most expensive losses for Moscow. Of course, we welcome Ukraine’s decision and its determination,

The ongoing conflict has highlighted the importance of diversifying gas supplies to build resilience against geopolitical risks.