In a rare Oval Office address, Obama sought to calm a U.S. public increasingly jittery about the fight against Islamist militancy that once appeared to be waged overseas. His remarks failed to quiet Republican critics who have long accused him of underestimating the militants' strength and staying power.
Speaking in a measured tone, Obama used his 14-minute nationally televised appearance to draw a careful line about what he would and would not do. He pledged, for example, to "hunt down terrorist plotters" anywhere they are. But he insisted: "We should not be drawn once more into a long and costly ground war in Iraq or Syria."