CANBERRA, AUSTRALIA - MARCH 05: Dr. Roland Keir (R) speaks wth Canadian Prime Minister Mark Carney 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)

CANBERRA, AUSTRALIA - MARCH 05: Dr. Roland Keir (R) speaks with Canadian Prime Minister Mark Carney 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)

CANBERRA, AUSTRALIA - MARCH 05: Craig Hardie (R) speaks wth Canadian Prime Minister Mark Carney 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)

CANBERRA, AUSTRALIA - MARCH 05: Australian Chief of Air Force Stephen Chappell (L) introduces Canadian Prime Minister Mark Carney to Australian Minister for Defence Richard Marles (R) 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)

CANBERRA, AUSTRALIA - MARCH 05: Craig Hardie (R) speaks wth Canadian Prime Minister Mark Carney as Australian Minister for Defence Richard Marles (L), Canadian Minister of Finance Francois-Philippe Champagne, Canadian Minister of National Defence David McGuinty and Australian Chief of Air Force, Air Marshal Stephen Chappell 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)

CANBERRA, AUSTRALIA - MARCH 05: Canadian Defence Minister David McGuinty attends a Defence Science and Technology showcase at RAAF Defence Establishment Fairbairn on March 05, 2026 in Canberra, Australia. Canadian Prime Minister Mark Carney has led a delegation to Australia to discuss trade and other matters. (Photo by Hilary Wardhaugh/Getty Images)

CANBERRA, AUSTRALIA - MARCH 05: Australian Minister for Defence Richard Marles attends a Defence Science and Technology showcase at RAAF Defence Establishment Fairbairn on March 05, 2026 in Canberra, Australia. Canadian Prime Minister Mark Carney has led a delegation to Australia to discuss trade and other matters. (Photo by Hilary Wardhaugh/Getty Images)

TOPSHOT - People take photos of some of the new Apple computers during the "Special Apple Experience" launch event at the Apple Store in the Manhattan borough of New York City, on March 4, 2026. (Photo by TIMOTHY A. CLARY / AFP via Getty Images)