On January 1, 1942, Churchill and Roosevelt issued a ""Declaration"" by United Nations
with 24 other states. This marked the beginning of the UN in a real and tangible form. Yet today many people have forgotten that the UN was forged in the midst of the confusion and complexity of wartime. How did the armies of the United Nations co-operate in the final years of World War II to contain - and ultimately reverse -- Nazi expansionism? And when and for what purpose did the UN undertake to tackle the international economic and social challenges, not only of warfare but of a post-war world...