Stratfor, the journal of geo-strategic analysis, says the Long War is threatening the future of the republic.
In the course of the Iraq and Afghanistan wars, military strategists in the United States developed the concept of the long war. The theory was presented in many ways, but its core argument was this: The defeat of Taliban forces and the Iraqi resistance would take a long time, but success would not end the war because Islamist terrorism and its supporters would be a constantly shifting threat, both in the places and in the ways they would operate. Therefore, since it was essential to defeat terrorism, the United States was now engaging in a long war whose end was distant and course unknown.
For more, please see Afghanistan and the Long War.