The U.S. Air Force must replace its aging F-15C Eagle fleet but will not compromise its F-35 Joint Strike Fighter buy, Gen. Dave Goldfein says.

Secretary of the Air Force Heather Wilson confirmed plans to accept 36 KC-46s in 2019, but Boeing is pushing for additional deliveries.

U.S. missile architecture, now focused on limited attacks and intercepting targets in midcourse and terminal phases, is being reshaped for a wider range of threats.