Americans in the 21st century?

Question

How did we arrive at our present prosperity?

What scacrifices were made to make it the most physically secure society in history?

Answer 1

work ethic

having to wake up early in the mornings even when we don't feel like it

hard work and study

balance of spending (sacrificing) money to buy many things, keep the economy going,  and saving/investing, to support business ideas and entrepreneurs

Answer 2

less government, capitalism, smart decisions, hard working people, and a good amount of resources.

Answer 3

The boom in industry after world war 2. As for being the most physically secure we are from that. In fact we need other countries(China for one) to fund our wars.