The Longest War (2020) The Emmy® and Peabody winning creators and executive producers of HOMELAND, Alex Gansa and Howard Gordon, team up with Emmy® winning director Greg Barker for this documentary feature, which unpacks the human stories and drama behind America's involvement in Afghanistan, now the longest war in U.S. history. First-hand witnesses - ranging from U.S. intelligence operatives, to soldiers and their families, Afghan officials, journalists, top government and military officials - bring their experiences to life through emotional interviews.