Ukraine’s Zelensky replaces security chief and hires Canada’s former deputy PM

President Volodymyr Zelensky replaced the head of Ukraine’s security service on Monday, continuing a top-level reshuffle ahead of a trip to Paris where he hoped to finalise agreements with allies on how to ensure that Russia does not repeat its invasion if a peace agreement is signed. Zelensky has been trying to revamp his administration as the grinding war of attrition with Russia marks its fourth anniversary next month. He is keen to keep up the momentum of US-led peace talks as well as...