https://www.csis.org/programs/former-programs/warfare-irregular-threats-and-terrorism-program-archives/militancy-and-arc-instability
Militancy and the Arc of Instability | Warfare, Irregular Threats, and Terrorism Program Archives |...
arc of instability
https://www.thenation.com/article/archive/how-bush-destabilized-arc-instability/
How Bush Destabilized the Arc of Instability | The Nation
arc of instabilitybushnation