The USS Callaghan (DDG-994) is a guided missile destroyer of the Arleigh Burke class, commissioned in 1979. It was named after Admiral Daniel Callaghan, a naval officer known for his bravery during World War II. The ship is designed for multi-mission operations, including anti-air, anti-surface, and anti-submarine warfare. Equipped with advanced radar and missile systems, the USS Callaghan plays a crucial role in naval defense. It can operate independently or as part of a larger fleet, contributing to maritime security and power projection. The ship was decommissioned in 2005 after over two decades of service.