The price for filling a tank is displayed on the screen of a fuel pump after a motorist refuelled their diesel car at a petrol station in Nuku'alofa, Tonga on March 17, 2026. (Photo by Ben STRANG / AFP via Getty Images)

Denmark's King Frederik X and Queen Mary (C) react as they meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's King Frederik X (L) and Queen Mary react as they meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's Queen Mary (R) meets representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's King Frederik X (2nd R) and Queen Mary (R) meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's King Frederik X (2nd R) and Queen Mary (R) meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's King Frederik X (R) and Queen Mary (C) react as they meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)

Denmark's King Frederik X (R) and Queen Mary (2nd R) meet representatives from renewable energy companies with the Danish business delegation at the Port of Melbourne on March 17, 2026, as part of their five-day state visit to Australia. (Photo by William WEST / POOL / AFP via Getty Images)