Oil exports from a crucial pipeline on Russia’s Black Sea coast were fully halted on Wednesday, Vladimir Putin said Russia will begin to invoice European gas buyers in roubles, and writer Tim Judah talks about Ukraine’s many volunteer armies, and the FT revealed that Archegos Capital Management quietly amassed a stake in Deutsche Bank after its founder Bill Hwang forged ties with the German lender’s leaders before the family office imploded last year.Subscribe to the FT News Briefing on Apple Podcasts or SpotifyMentioned in this podcast:Major Russian pipeline fully halts exports, sending crude higherRussia to switch gas invoicing to roubles for European buyersAt the gateway to Kyiv: Ukrainians dig in to resist Russia’s onslaughtScoop: Archegos quietly built stake in Deutsche BankWar in Ukraine: free to read The FT News Briefing is produced by Fiona Symon and Marc Filippino. The show’s editor is Jess Smith. Additional help by Peter Barber and Gavin Kallmann. The show’s theme song is by Metaphor Music. Topher Forhecz is the FT’s executive producer. The FT’s global head of audio is Cheryl Brumley. Read a transcript of this episode on FT.com See acast.com/privacy for privacy and opt-out information.