Ukraine has been plunged into fresh turmoil after President Volodymyr Zelensky confirmed the resignation of his powerful chief of staff, Andriy Yermak, just hours after anti-corruption agents raided his home. In a stark video address, Zelensky warned that “Russia very much wants Ukraine to make mistakes” and vowed “there will be no mistakes on our part” as he teased imminent talks with the U.S. on how this war could finally end.