“I believe, for a long time, protracted wars test the will of any democracy, to be sure, and people will underwrite a protracted war if they see some progress. But if they don't see progress, and it appears to be futile and useless, then that political support begins to evaporate rather quickly.”

American political commentator and retired general

Jack Keane is an American political commentator and retired Army general. He served from 1999 to 2003 as the 29th vice chief of staff of the United States Army, and in 2003 he briefly served as acting chief of staff. He is also a national security analyst, especially on Fox News, where he appears regularly on military and defense issues. Beyond broadcast commentary, he chairs the Institute for the Study of War and AM General, roles that reflect his continued focus on national security and strategy.