John B. "Jack" Keane is a retired four-star general in the United States Army. He is widely recognized for his influential role in developing and advocating for the "surge" strategy in the Iraq War, which is credited with significantly reducing violence. Following his military career, Keane has become a prominent national security analyst and commentator, frequently appearing on news networks to discuss geopolitical issues and defense strategies. He has served as a senior advisor to various government officials and is known for his hawkish foreign policy views. He is currently the chairman of AM General and the Institute for the Study of War.