Northrop Grumman has received a $140 million contract modification to provide Battlefield Airborne Communication Nodes for the U.S. Air Force. The modification is a follow-up to a contract initially awarded in June 2015. The agreement tasked the company with delivering Battlefield Airborne Communication Node Joint Urgent Operational Need, or BACN JUON. Work on the contract will be performed at San Diego, Calif., and is expected to be complete by January 2018.