The Defense Department has determined -- after a congressionally requested review -- that the Air Force, Navy and Marine Corps still require 2,443 Joint Strike Fighters, preserving the planned acquisition objective in a move that avoids disrupting unit cost and retains Pentagon plans to buy F-35s through 2038. On May 27, the Pentagon provided Congress a report that revalidated plans to procure 1,763 F-35 aircraft for the Air Force and 680 variants for the Navy and Marine Corps, according to...