The early post-Cold War optimism about increasing global cooperation has been dashed by the return of geopolitical rivalry.

As a journalist, book author, and sometime adviser with frequent visits to Afghanistan between 2002 and 2015, I offer this distillation of lessons that we might learn from the United States’ longest …

The different responses to Russia’s invasion of Ukraine and Iraq's of Kuwait three decades ago reveal growing international fragmentation and disorder.

Yemen’s internal divisions and a Saudi-led military intervention have spawned an intractable political, military, and humanitarian crisis.