Technically, yes, it is true that the development of the middle class signaled a decline in the importance of nobility, since people were able to have more economic freedom.
The 'New Women': The 'New Women' of the 1920s had been given the right to vote, were able to obtain college degrees, learned to drive, and went to work.
Massive globalization and further increases in technology, during this time the Cold War has begun so competing for superior tech led to advancements in Military Technology which was then converted for Civilian use, so overall technology was vastly improved as well living condition for the average American. More wars were fought for the idea of “Balance of Power” such as the Korean War and Vietnam, mainly a way to protect and spread capitalism. Patriotism was also more wide spread than ever.
Answer:millions of people were dead and millions more homeless, the European economy had collapsed, and much of the European industrial infrastructure had been destroyed. The Soviet Union, too, had been heavily affected.
Explanation: