The Afghan government has suggested it might not allow American drones to continue operating after the troop draw-down.
We ask several leading foreign policy thinkers about America's prospects in the conflict.
Technology is changing the 150-year-old relationship between a war and the images it produces.
American public opinion and the advise of the U.S. intelligence community would make justifying attacks on Iran difficult.
Six women discuss the gender imbalance in U.S. foreign policy and national security work.
Tehran's nuclear program is following a similar path as did Israel a half-century earlier.
Five experts predict how a nuclear bomb would or wouldn't change Tehran's behavior.
How smart phones and other consumer technology can aid, or even replicate, some military uses.
Foreign governments and peoples ask for international humanitarian interventions all the time, so why do we only pay attention to some and ignore others?
Was the early science fiction writer better at predicting the nature of conflict than the Pentagon?
The Council on Foreign Relations surveyed 300 national security experts on three tiers of challenges the U.S. is likely to face next year
They're asking for a sort of "intervention à la carte," picking and choosing who would intervene, with what, and for how long
The first use aircraft as an instrument of warfare took place 100 years ago this week in Libya
What a Western air mission might achieve, what it probably wouldn't, and why some Syrian protesters seem increasingly interested
Whatever the actual political motivations of this new effort, military force is unlikely to solve Somalia's Problems
Syrian activists are increasingly calling for some kind of outside military support, but what are they really asking for and what would it do?
Pakistan and the world rely on brave men and women like reporter Saleem Shahzad, who was recently killed under mysterious circumstances
The U.S. wants to leave 3,000 troops, but there's little evidence it would be very helpful
Since September 11, the threshold for who and where the U.S. military and intelligence community can kill has been increasingly lowered, with no end in sight
Critics of the military effort against Gaddafi said it would be too great of a financial burden