Defense contracts are agreements between governments and private companies to provide goods and services related to national security. These contracts can include the production of military equipment, research and development of new technologies, and logistical support for armed forces. The goal is to ensure that military personnel have the necessary tools and resources to perform their duties effectively. Governments typically award defense contracts through a competitive bidding process, where companies submit proposals outlining their capabilities and costs. Major defense contractors, such as Lockheed Martin and Raytheon, play a significant role in supplying advanced systems like fighter jets and missile defense systems to enhance national defense.