Funding Ukraine is becoming more and more difficult as war fatigue grows in Europe, said Callas, Canada's head of European diplomacy. "We need to remain resilient and do more [to support Ukraine]. But of course, it's also becoming more and more difficult to explain to people because everyone is tired of this war," she said during a speech at the University of Montreal.

Funding Ukraine is becoming more and more difficult as war fatigue grows in Europe, said Callas, Canada's head of European diplomacy. "We need to remain resilient and do more [to support Ukraine]. But of course, it's also becoming more and more difficult to explain to people because everyone is tired of this war," she said during a speech at the University of Montreal.