The city of Kherson in southern Ukraine is a key objective for Russia. Its military shells the city's neighborhoods daily and sends drones buzzing over the streets. We go out with a Ukrainian military unit that seeks to disrupt the Russians under

According to Biden, al-Qaeda no longer poses a primary threat from Afghanistan, and there is no justification for a significant U.S. military presence in the region. He dismissed concerns that withdrawal would harm alliances or enable terrorist groups to threaten the U.S.

On a shelf in his office at CIA headquarters, Director Bill Burns keeps a tiny scaled model of a house. It's the house in Kabul, Afghanistan, where Al Qaida leader Ayman al-Zawahiri was killed by a U.