Marins are specialized military personnel who serve in naval forces, primarily focusing on amphibious operations. They are trained to conduct missions on both land and sea, often working closely with naval ships and other military units. Their skills include combat, reconnaissance, and logistics, making them versatile in various environments. Typically, marins are part of elite units, such as the United States Marine Corps or the Royal Marines in the UK. These forces are known for their rigorous training and ability to respond quickly to crises, often being the first to engage in conflict situations or humanitarian missions.