CANBERRA, AUSTRALIA - MARCH 05: Dr. Roland Keir (R) speaks with Canadian Prime Minister Mark Carney (C) as Australian Minister for Defence Richard Marles and Australian Chief of Air Force Stephen Chappell and colleagues look on during a Defence Science and Technology showcase at RAAF Defence Establishment Fairbairn on March 05, 2026 in Canberra, Australia. Carney is in Australia to discuss trade and other matters. (Photo by Hilary Wardhaugh/Getty Images)