The Navy conducts military readiness activities that involve testing by the Navy’s research and acquisition community. The Navy tests ships, aircraft, weapons, combat systems, sensors and related equipment, and conducts scientific research activities to achieve and maintain military readiness. The fleet identifies military readiness requirements to support its mission; the Navy's research and acquisition community, including the Navy's Systems Commands and associated scientific research organizations, provide Navy personnel with ships, aircraft, weapons, combat systems, sensors, and related equipment. This community is responsible for researching, developing, testing, evaluating, acquiring, and delivering modern platforms and systems to the fleet—and supporting the systems throughout their life. The Navy’s research and acquisition community is responsible for furnishing high-quality platforms, systems, and support matched to the requirements and priorities of the fleet, while providing the necessary high return for America's taxpayer investment.