International rivalries can draw powerful states into local political disputes—sometimes with disastrous consequences—but the United States and China can avoid the mistakes of the Cold War.

The new National Defense Strategy calls for working closely with partners and allies, but the convoluted and slow disclosure process makes cooperation difficult.

Despite setbacks on the battlefield, Russia's mercenaries will remain an important instrument of the Kremlin's foreign policy.

The growing prevalence of terrorist ideologies that organize and encourage attacks without formal organizational structures will require analysts and policymakers to rethink their definitions.

Across ideologies, women and children are playing more prominent roles in terrorist groups.

Russia's military mobilization and annexation of portions of Eastern Ukraine narrows the possible options for Ukraine and its partners.

The talks between the regional rivals have yielded little progress because of the countries' disparate goals and regional positions.

The protection that terrorist sanctuaries afford allow leaders to cement their ideologies and preferred tactics in their groups.

Supporting the peace process in Mindanao will help shift Manila’s focus toward China.

The hijackers’ travel patterns before the attacks help reveal the terrorists’ organizational structure.

Far-right extremists have done little to disguise how they crowdfund their activities and legal defenses.

Russia’s imprisonment of Brittney Griner is affecting U.S. policy in Ukraine, and other adversaries are watching.