The reelection of Iran’s Hassan Rouhani, as well as U.S. President Donald J. Trump’s strong affirmation of ties with Sunni Arab states, sets the stage for an intense new round of competition in the M…

Governments and companies are embracing new emissions-reducing technologies that pull carbon dioxide out of the atmosphere. But it is uncertain whether this can work at the scale and in the time nece…

Reports that China has stepped up efforts to gain influence in foreign political systems have sparked concern in Australia, New Zealand, and other states amid signs that the campaign may be shaping d…

Grueling work, financial stress, and shifting values are pushing too many of the navy’s nuclear personnel out of the service. Here’s how it can turn things around.

The two-year-old war in Ukraine—which is far from deadlocked—could pivot dramatically in the coming months. U.S. decisions will play a decisive role.

The transatlantic alliance has begun to connect its traditional security interests in Europe with the geopolitical dynamics in the Indo-Pacific region, including tensions between China and Taiwan.

The response to the temporary closure of the Port of Baltimore—from a deadly tanker collision—demonstrates the resilience of U.S. supply chains despite fears of costly disruptions.