KEY POINTS Major U.S. and European banks should be prosecuted for “committing war crimes” over their financing of the Russian regime, according to a top aide to Ukraine president Volodymyr Zelenskyy. Oleg Ustenko, economic advisor to Zelenskyy, said the Ukrainian government believes banks, such as JPMorgan, HSBC and Citi, are aiding the Kremlin’s war efforts in Ukraine. “Everybody who is financing this war criminals, who are doing these terrible things in Ukraine, are also committing war crimes in our logic,” he told CNBC’s Hadley Gamble on “Capital Connection” on Tuesday.