In 1820, the Congress of Troppau was convened. The great powers of the day determined that they held the right to intervene in the revolutionary conflicts of neighboring states. Maintaining the status quo and preventing the spread of nationalism and revolution was viewed as vital in the quest to quell the type of conflict that had erupted in Europe during the French Revolution and the Napoleonic Era. While the beginning of the century had been fraught with what some called the first worldwide war, the remainder of the century saw only regional conflicts, most that were harshly quelled before they could spread outside their borders. However the policy of intervention did not quell nationalism. During the twentieth century nationalism would be at the heart of many conflicts, and the notion that great nations had the right to intervene to protect the status quo would be at the center of international policy for many nations including the United States.

In the case of the United States, intervention became a tool to either protect or disrupt the status quo in a region depending on which was most beneficial to interests of the United States. Intervention often placed the nation at odds with its own revolutionary history and patriotic rhetoric. Despite seeming hypocritical in nature, the United States was not forging new diplomatic patterns but rather following the patterns established by the great powers of the past. The U.S. Founding Fathers may have wanted to distance themselves from the politics and practices of Europe, but their decedents embraced the policies as the United States rose to international supremacy during the twentieth century.

During the rise to superpower status, the United States benefited economically and politically. The right to intervene allowed the United States to protect economic markets, and in some cases add new markets and resources to its growing stock pile. While the nation doggedly denied that it was an empire, by the end of the twentieth century the problems associated with empires began to plague the nation. Most prominently, it could be argued, the United States faced the growing international expectation that it would intervene when conflict threatened a region’s status quo. After a century of gaining prominence and wealth through international intervention, often with the sole goal of protecting resources and markets, the United States found that the right to intervene had transformed into an obligation to intervene.