How did America become a world leader? Of course, thanks to the entrepreneurship, freedom, democracy and hard work of Americans. However, this is only part of the answer. The second lies in the objective forces and laws of development. It was they who allowed America to overcome the most enormous economic catastrophe of the 20th century, called the Great Depression, and to stand at the head of human development. Today, humanity is again going through difficult times, which in their scale threaten to surpass even the consequences of the global crisis of the 1930s. Therefore, the answer to the question “how did America become a world leader?” is far from being an idle interest; it provides an opportunity to look from the past to our days and assess the possibilities of emerging from the Great Recession of our time. This book is a continuation of the series “Political Economy of War” by V. Galin, dedicated to the study of the political economic history of the emergence of the Second World War.