The parties pledged to uphold the Atlantic Charter, to employ all their resources in the war against the Axis powers, and that none of the signatory nations would seek to negotiate a separate peace with Nazi Germany, Italy or Japan in the same manner that the nations of the Triple Entente had agreed not to negotiate a separate peace with any or all of the Central Powers in World War I under the Unity Pact.
The term United Nations became synonymous during the war with the Allies and was considered to be the formal name that they were fighting under.