Observers have vivid and plural assessment to the foreign policy agenda in the eight years of Barack Obama's Presidency of the United States. This research argued that the passive nature of Obama Administration's way of dealing with international security issues is the reasonable phenomenon under the long-term American foreign policy cycle. The major research question: is there a passive/aggressive cycle when the US deals with international security issues? How long is the period of this cycle? Is it true that Bill Clinton passive, George W. Bush aggressive, and Obama passive? Does this mean Donald Trump, the President elected in 2016 will start a more aggressive foreign policy? This research adopted both quantitative and qualitative methods. The author examined previous American history and provided the analysis. The foreign policy cycle took roughly around twenty years. US foreign policy was aggressive from 1900-1920 (World War I), passive from 1920-1940 (After WWI), aggressive from 1940-1960 (World War II and the Cold War), passive from 1960-1980 (Vietnam War and Détente during the Cold War), and aggressive from 1980-2000 (Victory of the Cold War). The 911 terrorist attack in 2001 toward American homeland gave a massive impact to the country and prolonged the aggressive foreign policy period of the Reagan/Bush senior/Clinton administration. Accordingly, this research argued that Obama was the beginning of the twenty-years bipartisan passive foreign policy. Thus, incumbent President Trump continued this passive nature of foreign policy.