By: HISTORY.com Editors
26 WWII Allies declare themselves “United Nations”
President Franklin D. Roosevelt and British Prime Minister Winston Churchill issue a declaration, signed by representatives of 26 countries, called the “United Nations.” The signatories of the declaration vowed to create an international postwar peacekeeping organization.
On December 22, 1941, Churchill arrived in Washington, D.C., for the Arcadia Conference, a discussion with President Roosevelt about a unified Anglo-American war strategy and a future peace. The attack on Pearl Harbor meant that the U.S. was involved in the war, and it was important for Great Britain and America to create and project a unified front against Axis powers. Toward that end, Churchill and Roosevelt created a combined general staff to coordinate military strategy against both Germany and Japan and to draft a plan for a future joint invasion of the Continent.
Among the most far-reaching achievements of the Arcadia Conference was the United Nations agreement. Led by the United States, Great Britain, and the Soviet Union, the signatories agreed to use all available resources to defeat the Axis powers. It was agreed that no single country would sue for a separate peace with Germany, Italy, or Japan-they would act in concert. Perhaps most important, the signatories promised to pursue the creation of a future international peacekeeping organization dedicated to ensuring “life, liberty, independence, and religious freedom, and to preserve the rights of man and justice.”
Also on This Day in History
Discover more of the major events, famous births, notable deaths and everything else history-making that happened on January 1st
Related
World War II
214 videosThese photos show the chaos and courage of the 1940 evacuation, when hundreds of thousands of Allied troops escaped German forces by sea.
Victory over Japan Day ushered in peace after the devastation of World War II.
The torpedoing of the German ocean liner *Wilhelm Gustloff* in 1945 led to the deaths of some 9,000 men, women and children.
About the author
HISTORY.com works with a wide range of writers and editors to create accurate and informative content. All articles are regularly reviewed and updated by the HISTORY.com team. Articles with the “HISTORY.com Editors” byline have been written or edited by the HISTORY.com editors, including Amanda Onion, Christian Zapata, Cristiana Lombardo and Adrienne Donica.
Fact Check
We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.
Citation Information
- Article Title
- 26 WWII Allies declare themselves “United Nations”
- Author
- HISTORY.com Editors
- Website Name
- History
- Date Accessed
- October 21, 2026
- Publisher
- A&E Television Networks
- Last Updated
- May 28, 2025
- Original Published Date
- November 05, 2009