Bangladesh, Nov. 5 -- Every year on October 24, the world celebrates United Nations Day, marking the anniversary of the day in 1945 when the UN Charter came into force. This landmark moment, ratified by 50 founding nations – including the five permanent members of the Security Council – gave birth to what remains the most ambitious experiment in international cooperation: the United Nations. Its purpose, laid out in the very first line of its Charter, was to “save succeeding generations from the scourge of war,” a solemn promise born from the devastation of two world wars that had brought “untold sorrow to mankind.”

Yet, nearly 80 years later, humanity remains haunted by conflict. From the ongoing wars...