This is a contract for post-deployment software maintenance and engineering support for the PAC-3 missile system over Years 9 and 10. The work includes logistics, cybersecurity, configuration management, and program management support. The services are to be performed by Lockheed Martin Missiles and Fire Control in Grand Prairie, Texas. The government intends to award this as a sole-source contract to Lockheed Martin, citing them as the only qualified source with the necessary technical data. No budget or specific project timelines are detailed in this description.