Marking the U.S. commitment to stop the spread of communism in a way worldwide, so, the implementation of American foreign policy were due for decades. It led to significant military and economic involvement in regions like Greece, Turkey, and Vietnam, which influencing U.S. military spending and the creation of an anti-communism association in order to look for the preservation.

The fear of communism contributed to the creation of NATO (North Atlantic Treaty Organization) in 1949, a military alliance that continues to exist today as a cornerstone of Western security and defense. This alliance meant that the countries on it would help each other's in the case of an attack from a communist country.

The reasoning behind America's reasoning was the intern benefit to start a war that they could win, and, the possibility to stop the spread of communism in Vietnam, thus following the "Domino theory". The United States were specially aggressive in this sense, so they needed to demonstrate some democracy.

Many believed that the war ended when the U.S. got to the moon, when in reality the Soviet Union's doom happened several years later, just after the wars with Afghanistan and revolt in Eastern Europe started showing the cracks of communism. Thus, leading to a collapse in the internal government of Russia. Finally leading to, the collapse of the Soviet Union and the end of the Cold War. Marking a shift in global power dynamics. The U.S. rose as the world's dominant country, and it begin a new era of globalization, shifting the focus to economic competition, technological innovation (similar to what happened on the Cold War but more globally), and international relations in a more interconnected world. Certainly, without the Cold War the modern global commerce wouldn't even exist, aka: Many countries would lack for many products made by other countries due to the low relations that they had before the Cold War.

After his smashing winning to the Soviet Union, Vietnam War and many other wars it was obvious that the U.S. would find comfort in war. It's simple, the origins of the rise in the country are incredibly related with the art of war, thus, leads to the modern days in which the country is still increasing the weaponery and military force to be the first one to get advantage for the next possible war. Dwight D. Eisenhower’s warning about the military-industrial complex since 1961, farewell address became a key point of reflection. The Cold War drove massive growth in defense spending, which reformed the American economy, leading to the rise of large defense contractors and a permanent expansion of the U.S. military presence around the world. Due to this, the U.S. has proven its ability to get benefit from wars and basically founding it the best way to rise his power and economy. Thus, in the recent times is complicated, wars can't be made as before, many people can die with it and they need at least a good reason/excuse to do so.