President Trump says there is no clear timeline for the conflict in Iran and is not ruling out having boots on the ground ...

Retired four-star Gen. Jack Keane says he believes President Donald Trump is moving steadily toward a decision to use military force against Iran, even as Washington and Tehran pursue fragile nuclear ...

Retired four-star Gen. Jack Keane said the U.S. should use military action against Iran while the regime is at its "weakest," arguing that Tehran continues to lie about its nuclear ambitions even as ...

Lessons on leadership from the battlefield to the boardroom. That's what retired four-star Gen. Stanley McChrystal says he will share in a new MasterClass arriving Thursday. McChrystal joins "The ...