Lockheed Martin Corp., Fort Worth, Texas, is being awarded a $101,304,341 modification to the previously awarded Lot IX F-35 Lightening II Joint Strike Fighter advance acquisition contract (N00019-14-C-0002) for the procurement of helmet mounted display systems (HMDS) (383) for the Air Force, Marine Corps, Navy; international partners; and the governments of Japan and Israel under the Foreign Military Sales program. The HMDS is a bi-ocular helmet display system that provides the pilot with aircraft/mission data on the visor display. Data consists of flight, navigation, and weapons symbology and video from onboard sensors. Work will be performed in Cedar Rapids, Iowa (65 percent); and Fort Worth, Texas (35 percent), and is expected to be completed in June 2018. Fiscal 2013 aircraft procurement (Air Force); 2014 aircraft procurement (Navy, Marine Corps); and 2015 aircraft procurement (Navy, Marine Corps, and Air Force); international partner, and foreign military sales funds in the amount of $101,304,341 are being obligated on this award, $23,397,200 of which will expire at the end of the current fiscal year. This modification combines purchase for the Air Force ($47,086,535; 46.5 percent); Marine Corps ($22,726,422; 22.4 percent); Navy ($15,088,165; 14.9 percent); international partners ($12,166,674; 12 percent); and the governments of Japan ($437,030; 0.45 percent) and Israel ($3,799,515; 3.75 percent) under the Foreign Military Sales program. The Naval Air Systems Command, Patuxent River, Maryland is the contracting activity.