A replenishment ship is a type of naval vessel designed to supply other ships with essential resources while at sea. These resources can include fuel, food, ammunition, and spare parts, allowing naval fleets to maintain their operational capabilities without returning to port. Replenishment ships play a crucial role in extending the range and endurance of naval operations. Typically, replenishment ships are equipped with specialized equipment for transferring supplies, such as hoses and cranes. They can support various types of vessels, including aircraft carriers and submarines, ensuring that the entire fleet remains well-supplied during missions. This capability is vital for maintaining maritime security and readiness in naval warfare.