Sanctions will not persuade the Assad regime to surrender power, and talk about an embargo on luxury goods is a cruel joke.

Warfighting is becoming more risky as authoritarian regimes modernize their forces. If the United States wants to retain the ability to respond successfully to crises across the globe with a leaner and more cost-effective force, then our leaders must recognize that maintaining control of the air is the starting point for U.S. military supremacy.

Former UN SecGen Kofi Annan just wrapped a breathtakingly cynical press conference in Turkey, insisting his peace plan for Syria is not dead despite new demands from the Assad regime and failure to withdraw from major city centers agreed to in the Annan plan.

The question for Republican presidential candidates is whether they think President Obama’s decision to ignore the American military’s advice when it comes to Afghanistan is the wisest course and whether, if elected, he or she will reverse course.

The dispute over Iran’s controversial nuclear program has reached crisis point. Despite increasing foreign sanctions in recent months, Tehran is continuing its nuclear work, refusing to cooperate, and has indeed tripled its monthly production of higher-grade enriched uranium.

President Obama’s decision to withdraw U.S. troops is the mother of all disasters.

For the past couple of weeks, we have been debating whether the GOP presidential field was slipping into isolationism. However, President Obama made clear that if his Republican challengers want the "come home America" vote, they'll have to wrest it from him.

Obama's calibration of strategy, with a greater focus on politically-motivated deadlines and less emphasis on security realities on the ground, is a strategic mistake.