
Serbian Army soldiers salute atop tanks during an annual military parade in Belgrade, on Sept. 20, 2025. Serbia showcased its most modern weapons, with the participation of around 10,000 soldiers, 600 vehicles, and 70 aircraft during the annual military parade. Oliver Bunic/str/AFP via Getty Images

A Republican Guard stands by the French president's office at the Elysee Palace during the 42nd edition of the “journees europeennes du patrimoine” (European heritage days), in Paris, on Sept. 20, 2025. Guillaume Baptiste/AFP via Getty Images