President Volodymyr Zelensky’s decision Tuesday to replace Ukraine’s commander-in-chief, 60-year-old Oleksandr Syrskyi with 43-year-old Mykhailo Drapatyi, comes in the wake of widespread protests after Zelensky fired his 35-year-old defense minister Mykhailo Fedorov. CNN’s Nick Paton Walsh lays ou...