Earlier today, President Obama unveiled a revamped national military strategy in a major address at the Pentagon. While the full details of the strategy—dubbed “Sustaining U.S. Global Leadership: Priorities for 21st Century Defense”—have yet to be disclosed, early reports offer some important insights into the Administration’s evolving national security and defense priorities.

Is electromagnetic pulse a real threat to American security? On the heels of recent Republican primary debates, the danger to U.S. electronics and infrastructure posed by a high-altitude nuclear blast suddenly has emerged as a campaign issue. So has concerted opposition to it, with both liberal and conservative skeptics ridiculing the idea as an overblown, even fabricated, distraction. Yet there is ample evidence that the danger is both clear and present.

As the past three years have shown, President Barack Obama and his predecessor, George W. Bush, don't often see eye-to-eye on foreign policy. On at least one issue, however, the two appear to be in full agreement. Both have stated clearly and repeatedly that the radical, revolutionary regime that rules Iran must not be permitted to acquire nuclear weapons. And yet, neither the current president nor the previous one made serious headway on this most serious of national security challenges.

China's BMD efforts advance; India, NATO align on missile defense; South Korea adds missile deterrent; Reassuring Russia over European defense; Turkey shuts Israel out of early warning; New Russian ICBM stumbles out of the gate

Cat-and-mouse over Gaza rockets; Taiwan scrambles for missile deterrent; Debating missile defense in Europe; Taking Russia to court over missile defense; India's missile defense grid takes shape

Russia's responses to European defense; Iran seeks its place as a global missile power; Chinese missile development: more of the same

Moscow strengthens missile shield; Mapping the Musudan; Keeping up with the (nuclear) Joneses; Turkey: the weak link for NATO defenses?; Rethinking the INF Treaty

Romania comes aboard...; ...as Russia chafes; Spurned by Russia, Iran looks inward; Israel doubles down on Iron Dome

Russian missiles for Syria (and Hezbollah?); Iron Dome comes online; S-300 reinforces Russian claims to the Kurils; U.S. missile shield sets sail; Israeli defenses against the DPRK