The United States suffered the fewest military and civilian deaths during World War II because the war as fought in Europe and America became the last country to join the war in siding with Allies. It is estimated that about 420,000 American soldiers died in the war. Poland entered in war after its invasion by Nazi Germany 1939. Great Britain was one of the major countries that fought with Axis and suffered more casualties. Japan involvement in the Pacific Ocean and the bombing of Hiroshima and Nagasaki led the country to suffer deaths.
To lay the foundations for a world government that would replace existing nation-states and their militaries is the statement that is not a purpose of the United Nations as described in the United Nations Charter of 1945. The correct option among all the options that are given in the question is the last option.