An unusual battle has broken out between President Trump and top military commanders over the future of a Navy SEAL commando. Today, how a high-profile war-crimes investigation has prompted a war of words from the commander in chief — rocking the highest levels of the military. Guest: Dave Philipps, a national correspondent covering veterans and the military for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily.  Background reading:Why Chief Petty Officer Edward Gallagher was investigated for war crimes, and why his fellow SEAL members broke the group’s code of silence to testify against him.Order within his ranks was a “deadly serious business.” Now, Richard V. Spencer, the secretary of the Navy, has resigned after clashing with the president over Chief Gallagher’s demotion.