With an estimated 100,000 Russian troops massing on Ukraine's eastern border, Ukrainian President Volodymyr Zelensky has chosen this moment to pick internal battles - an approach that risks dividing the country amid what Western officials warn could be a full-scale military attack by Moscow.
Zelensky is focusing on two of Ukraine's most powerful men: Rinat Akhmetov, a metals and media mogul whose total wealth Forbes Magazine estimates to be around $7 billion, and Petro Poroshenko, the billionaire former president whom Zelensky defeated in 2019.