The speed with which the Taliban took control of Afghanistan surprised not just the world but even its own members. The group's rapid rise coincided with an equally fast withdrawal of US-led international forces. In a major speech this week President Biden rejected criticism that the manner of the American withdrawal contributed to the sudden collapse of the Afghan government. He also said that the mission was never about nation building. But critics argue that the events in Afghanistan have not just tarnished Washington’s reputation but they have also exposed the limits of its willingness to invest time and resources to achieve foreign policy objectives. So what does America's departure from Afghanistan tell us about its future engagement on global security issues? Is it an effort to concentrate on more pressing challenges from rivals like China and Russia? Or is it a continuation of Donald Trump's isolationist ‘America First’ policy? How will it affect Washington's international credibility and its desire to promote human rights and democratic values around the world?

Ritula Shah is joined by a panel of expert guests. Producers: Junaid Ahmed and Paul Schuster.