Gabriel Gatehouse speaks to Ilya Ponomarev, a former member of the Russian parliament who is fighting in Ukraine – against Russia. Ponomarev has long said he wants to bring down Vladimir Putin, but was once on the Russian government payroll. He has had his feet in many camps: among the Russian elites, inside the popular opposition, and now with Ukraine’s defence forces. What will the repercussions be of this war be, in Ukraine and in Russia?