A marine is a member of a military force. Marines specialize in military actions in other countries, such as amphibious warfare. Marines usually have strong links with the country's navy. The commander in the field is usually the commander of the fleet. Support for the marines such as medical, legal, and supplies come from the navy. The anchor is often used as a symbol for the marines. The word "marine" is from the English word "marine", meaning "of the sea", from the French "marin(e)", "of the sea" which was from the Latin "marinus" ("maritime"). The name "marine" means "navy" in French, Dutch, and German. Marine forces are usually part of the navy, but they can be part of the army or act on their own.