Russian President Vladimir Putin could "disappear at any moment," sending Moscow into a civil conflict amid its floundering invasion of Ukraine, warned former commander Igor Girkin. Girkin, also known as Igor Strelkov, rose to prominence for his role in the Russian annexation of Crimea in 2014. He has become increasingly critical of Kremlin leadership as its military struggles to achieve substantial military gains in Ukraine nearly a year after Putin launched the "special military operation." Although he supports the goals of the Russian military, he has recently offered grim assessments of the war for Putin. During a recent discussion, Girkin...