Throughout the first two centuries of American history, a potent military force was necessary to face immediate threats at the time. When these threats were lifted, the military establishment was reduced in size by policymakers. That is, the army assembled for each crisis vanished as soon as that crisis ended. This was the case in 1865, 1918, and 1945, corresponding to the Civil War, and the First and Second World Wars, respectively. For instance, the million-men-strong Union Army of 1865 dwindled to just 57,000 in a year and to less than 30,000 in another five years. This pattern continued even after the Second World War when the United States had taken on the responsibilities of a superpower. The US Army had more than eight million officers and soldiers on V-J Day in 1945. Only 1.8 million people were still on active duty after a year, and that number was cut in half again the next year.
Cold War With the start of the
Cold War in 1947 and after the enactment of the
National Security Act in the same year, the US military forces were automatically included in the national security doctrine during peacetime. Over the following four decades, military influence increased, leading to the 1986 Defense Reorganization Act, also known as the
Goldwater-Nichols Act, which designated the chairman of the Joint Chiefs of Staff as the "principal military adviser to the President, the National Security Council, and the Secretary of Defense." Civilian academics and business researchers, including
Henry Kissinger and
Herman Kahn, came to prominence during the Cold War and significantly promoted the use of force. The complexity of the nuclear policy may have contributed to the rise of these "defense intellectuals" and their think tanks.
Post Cold War era After the end of the Cold War, the United States took advantage of the collapse of the Soviet Union and the Warsaw Pact by encouraging the newly liberated nations to join the
NATO, the political and military alliance of the West. Since then, it has been a policy of the US to maintain military superiority over potential adversaries. This era is marked by an increased propensity to employ force, which might have normalized war. During the Cold War era, from 1945 to 1988, there were six significant US military operations abroad. In comparison, since the fall of the Berlin Wall in 1989, nine significant military interventions have taken place, from the 1989 Operation Just Cause (the ouster of
Manuel Noriega) to the 2003 Operation Iraqi Freedom (the overthrow of Saddam Hussein). In this latter period, the convergence of
CIA and
JSOC operators was "so complete that US officials ranging from congressional staffers to high-ranking CIA officers said they often [found] it difficult to distinguish agency [CIA] from military personnel." Since the end of the Vietnam War in 1975, some have contended that the United States has evolved into a neo-militaristic state, characterized by its reliance on a relatively limited number of volunteer combatants, substantial reliance on sophisticated technologies, and rationalization and extension of government recruitment and advertising campaigns. The American response to the 9/11 attacks as a "global" war on terror promoted the recent remilitarization of the Western countries, and introduced the Middle East as the source of threats to the rest of the world, which helped justify the bigger efforts after 9/11 to forcefully reshape the region. == Rationale ==