ABSTRACT: This article provides an overview of the domestic security environments in Afghanistan, Iraq, Libya, and Syria today and discusses the danger new radical-inspired states pose to the United States and the international community. Ultimately, state-building remains the primary strategic means to address this new challenge. However, the world should prepare for the rise of radical-inspired states if state-building proves to be impossible. ********** Washington is not ready to dispense with the Global War on Terror. The scourge of radical Islam still constitutes a serious threat to the stability of the international system. Recently, the world has witnessed a series of terrorist attacks take place in the West, while the governments of countries such as Nigeria, Pakistan, Yemen, Somalia, and others, struggle to quell insurgent forces and terrorist groups. Four countries in particular merit America's close attention over the span of the next several years: Afghanistan, Iraq, Libya, and Syria. All represent a new type of menace. They resemble or collapsed states in form. (1) Yet they are inherently precarious because new radical-inspired states (or terror states) are developing within their borders. (2) This past decade, the conventional academic wisdom argued certain failed states undermined global stability because terrorists could operate with impunity from inside such countries. (3) Nowadays this threat is undergoing a stunning metamorphosis, with insurgent-based movements transforming into new states and challenging the host governments of these four countries for supremacy. Today, the Afghan, Iraqi, Libyan, and Syrian governments are all fighting for their very survival, and America has the ability to play a role in determining whether they ultimately endure or perish. Surely, some policymakers and scholars believe the protracted conflicts raging within these countries are not (or no longer) America's primary concern, that such wars can only be resolved by local political actors, and that the United States should not be bestowing foreign aid upon politically inept governments led by corrupt utilitarian-minded elites or rushing to the defense of human rights and international law every time some beleaguered autocrat clinging to power violates the rules of war. While such views hold merit, the domestic security environments in Afghanistan, Iraq, Libya, and Syria are seemingly becoming more hazardous by the day. Hence, the United States risks a great deal in terms of its national security interests if it decides to turn away from these countries. In Iraq and Syria, terrorists fighting under the banner of the Islamic State of Iraq and the Levant (ISIL) have murdered US citizens, massacred and enslaved ethnic and religious minorities, and looted and pillaged centers containing historical and cultural artifacts. (4) In Libya, the country has descended into anarchy since the overthrow of Muammar Gaddafi. Rival militias fight for control over stretches of territory, while ISIL-affiliated and other terrorist groups infiltrate the country due to the lack of a central government. In Afghanistan, a recent deadly wave of terrorist attacks has called into question whether the Afghan government could survive should the remaining US military forces depart. (5) Overall, if America decided to disengage from these countries, radical Islamists could capture greater swaths of territory in Iraq and Syria, Libya may devolve into a terrorist haven, and Afghan cities may soon start falling to the Taliban. Can anything be done to prevent these scenarios from happening? This article describes the deteriorating domestic security environments in Afghanistan, Iraq, Libya, and Syria. It then discusses the options available to the United States in terms of addressing these concerns. Thereafter, it analyzes the nature of the new threat facing the United States in the Global War on Terror. …