Please use the sharing tools found via the share button at the top or side of articles. Copying articles to share with others is a breach of FT.com T&Cs and Copyright Policy. Email licensing@ft.com to buy additional rights. Subscribers may share up to 10 or 20 articles per month using the gift article service. More information can be found at https://help.ft.com/faq/gifting-and-sharing-an-article/what-is-a-gift-article/. https://www.ft.com/content/dbd1d803-ab37-43f1-920f-fce74952313a Recruiters and propagandists who previously worked for Russia’s Wagner Group have emerged as a main conduit for Kremlin-organised sabotage attacks in Europe, according to western intelligence officials. The fighter group’s status has been uncertain since a failed rebellion...