Death Is Our Business" by John Lechner, examines the rise and operations of Russian mercenary forces, specifically the Wagner Group led by Yevgeny Prigozhin. The sources highlight how these private military companies extend Russia's global influence, particularly across the African continent and in the conflict in Ukraine. They explore historical precedents for mercenary warfare, touch upon Wagner's involvement in Syria, Libya, and the Central African Republic, and provide firsthand accounts from individuals affected by or involved with Wagner. The texts also note the tensions between Wagner and the Russian Ministry of Defense and Prigozhin's eventual failed rebellion. Ultimately, the sources suggest that the era of private warfare has returned and that Wagner's activities reflect this new reality in global conflicts.