The unprecedented Iranian attack on Israel presents U.S. officials with mounting challenges in trying to contain the conflict and maintain a deterrence against Iran and its allies.

Iraq’s new prime minister has formed a government in the hope of uniting the country’s factions, but challenges in combating corruption, powerful militias, and foreign influence loom.

The United States and its allies have imposed broad economic penalties on Russia over its war in Ukraine. As the conflict continues, experts debate whether the sanctions are working.

The global distribution of COVID-19 vaccines is underway, but the emergence of new coronavirus strains threatens to make the pandemic far worse before it gets better.

The United States and South Korea should pursue an expanded nuclear agreement that supports the production of civilian nuclear power and enhances extended deterrence against the North Korean threat. …