Soldiers in traditional uniforms perform during a traditional guard-changing ceremony in Buenos Aires, Argentina, April 25, 2026. (Xinhua/Zhang Duo)

Soldiers in traditional uniforms perform during a traditional guard-changing ceremony in Buenos Aires, Argentina, April 25, 2026. (Xinhua/Zhang Duo)

Soldiers in traditional uniforms perform during a traditional guard-changing ceremony in Buenos Aires, Argentina, April 25, 2026. (Xinhua/Zhang Duo)

This photo taken on April 25, 2026 shows a soldier in traditional uniforms during a traditional guard-changing ceremony in Buenos Aires, Argentina. (Xinhua/Zhang Duo)