Gen. Mark Milley, chairman of the Joint Chiefs of Staff, marked the D-Day anniversary in Normandy this week. He spoke to NPR about the modernization of warfare and what AI might mean for the future.

The meeting between Gen. Mark Milley, chairman of the U.S. Joint Chiefs of Staff, and his Russian counterpart in Finland comes at a crucial time in the wake of the U.S. withdrawal from Afghanistan.

Last week the president tweeted that troops should be home from Afghanistan by Christmas. In an interview with NPR, Joint Chiefs of Staff Gen. Mark Milley said no final decisions have been made.