GBU-12 Paveway II of the Paveway series) are produced by defense contractors Lockheed Martin and Raytheon. Raytheon began production after purchasing the product line from Texas Instruments. Lockheed Martin was awarded a contract to compete with Raytheon when there was a break in production caused by transferring manufacturing out of Texas. "Paveway II" refers specifically to the guidance kit, rather than to the weapon itself. See also GBU-16 Paveway II, where the same guidance unit is fitted to a Mk 83 1,000-lb bomb. The US Department of Defense has upgraded GBU-12 production versions to include GPS guidance modes. Lockheed Martin is the sole
Lockheed Martin F-35 Lightning II procurement potentially hostile Russian airspace in the event of a nuclear escalation is considered weaker than that of the F-35. Lockheed Martin offered the F-35 to Greece's Hellenic Air Force as a replacement for F-4E Peace Icarus 2000 and F-16C/D Block 30 aircraft in 2009. As of October 2017, largely due to the Greek government-debt crisis, Greece has decided to upgrade the Hellenic Air Force's fleet of ageing General Dynamics F-16 Fighting Falcon aircraft, and to postpone a decision on further procurement until the 2020s. The F-35 was reportedly still on the table, and if economically viable by the 2020 timeframe,