President Obama laid out an ambitious vision for the U.S. in the Middle East. Time will tell whether his successes or failures will most define his legacy.

President Obama’s words will make the world a more dangerous place.

President Obama’s cool logic was often a poor fit for a hot, messy world.

George W. Bush tried to do too much. Barack Obama has advocated doing too little.

If history is to continue to bend in the direction President Obama favors, it will need ongoing assistance from the United States.

Flaws aside, Obama is in touch with an American electorate that is very skeptical about the wisdom of heavy involvement in the Middle East.

With the China–Japan struggle in mind, defense officials and contractors around the world are watching closely to see who wins Australia’s contract.

Legally-mandated report acknowledges the obvious—but will anything be done about it?

New research suggests trees emit five times less carbon in warmer temperatures than was previously believed.

But will President Obama follow through?