India and Pakistan are entangled in a long-standing security competition, but they are chasing vastly different goals—and certainly aren't locked in an arms race.

It is tempting for Saudi Arabia and the United Arab Emirates to turn to nuclear technology as part of a larger strategy to counter Iranian influence in the region.

While NATO can extend the status quo in the short term, it cannot postpone resolving its defense and deterrence dilemmas without undermining Alliance confidence and cohesion.

With the Iranian nuclear crisis nearing a watershed, the question of the Obama administration's "red lines" on Iran's nuclear program is the subject of considerable speculation and debate.