Sentence:  We will recall that the still confident liberals of the Truman administration gathered with other Western utopians in San Francisco to set up the legal framework , finally and at last , to rationalize war - to rationalize want and fear - out of the world : the <WSD>United</WSD> Nations . 
Meaning of the word marked with <WSD> tags:  an organization of independent states formed in 1945 to promote international peace and security