To rebuild the shattered economies of Western Europe after WW2.
Answer:
Atomic Bombs
Explanation:
Those cities were the place where the American Government conducted the Manhattan Project.
That project cost the government around $ 2 Billion with the purpose of creating mass destroying weapons that can turn the tide of war in one's favor. Eventually, it led to the creation of Atomic Bombs.
In the world war 2, US military dropped 2 of those atomic bombs, on the City of Hiroshima and Nagasaki In Japan. Killing around 146,000 people in Hiroshima and 80,000 people in Nagasaki.
This left the Japanese Government with no choice but to surrender, and make United States and its allies as the winner of world war 2.
The greatest advantage of United States in world war II was its
ability to rapidly transition from peace to war and mass produce weapons
and war equipment at a colossal scale. This was so effective that the
USA was able to make up for time lost, and the nation was able to
effectively train the necessary forces and then exert a massive material
superiority.
America was able to build up an air force that came
to dominate the skies, and with this air superiority, it was all but
over for the enemy, the Axis forces.
South Africa, Nigeria, and Kenya fall in the following order on the continuum:
A Nigeria
B South Africa
C Kenya
