The shutdown of Russian gas transit through Ukrainian territory is one of Moscow's "most costly defeats," U.S. National Security Council spokesperson John Kirby said, as reported by Ukrinform on Jan.

Slovak Prime Minister Robert Fico has expanded his threats against Ukraine over Kyiv's suspension of Russian natural gas transit. Source: Teraz.sk, citing Fico's words in Brussels after talks with European Commission officials on 9 January,

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