Two years ago, the head of Wagner, Yevgeny Prigozhin ordered 25,000 of his troops to march towards Moscow. 24 hours later they were ordered to stand down. Two months later Prighozhin, his deputy and 10 other died when his private plane exploded over Russia. This month Wagner announced they were leaving Mali, so what has happened to the organisation since the death of Prigozhin?

Guest John Lechner, author of Death is our Business: Russian Mercenaries and the New Era of Private Warfare (Bloomsbury)

You can pre-order the book online here.