In 1945, the world had just endured the bloodiest war in history. World leaders were determined to not repeat the mistakes of the past. They wanted to build a better future, one free from the "scourge of war" so they signed the UN Charter — creating a global organization of nations that could deter and repel aggressors, mediate conflicts and broker armistices, and ensure collective progress.
Over the following 75 years, the UN played an essential role in preventing, mitigating or resolving conflicts all over the world. It faced new challenges and new threats — including the spread of nuclear weapons and other weapons of mass destruction, a Cold War and brutal civil wars, transnational terrorism and genocides. Today, the UN faces new tensions: shifting and more hostile geopolitics, digital weaponization, a global pandemic, and more.
This slideshow shows how the UN has worked to build peace and security around the world:
Today, more than 85,000 troops and police from over 120 countries work as part of United Nations peace operations. These operations help to prevent the outbreak or renewal of conflict, build peace, and support countries as they transition out of conflict and/or authoritarianism.
Photo credit: UN Photo/Eskinder Debebe