Why does the U.S. need a Marine Corps?

One can argue that the strategic concept of any service can be defined by the role and purpose which it plays in implementing national policy. The Marine Corps has been founded on the idea that it provides a flexible expeditionary force which comes from the sea on short notice, sustains itself from the sea, and returns to the sea when an operation is done.

Although the United States Army is capable of launching from the sea, the army’s strategic concept is that it fights and wins the land wars. The Marines, on the other hand, flexibly adapt in the face of necessity. The Marines use the commons of the sea as both a maneuver space and as a base from which to apply force. The natural concept which arises from this strategy is the sea base.

Many argue that the army is increasingly moving in the direction of an expeditionary force. Marines, on the other hand, can act as soldiers in the army, but they are not designed to fight the operational battle. The question which we must ask ourselves is to what extent we want to see both the army and the Marines adopt or maintain expeditionary capabilities. If both services possess this capability, there may be redundancy in the services. However, we must not confuse effectiveness with efficiency and conclude that redundancy in war is dangerous. Efficiency demands that one achieve the greatest output with the smallest input. In reality, war is not a labor of efficiency but rather demands an effective operational strategy. Thus, should the army and the Marines assume expeditionary responsibilities, we can be assured that both will be providing a force which provides utility to the nation.

because they look HOT in there uniform.

because we are the only ones man enought to stand up for freedom,the rest of you so called ganster run back to court.

i dont know.

Simple: If not for our tough military other countries like Russia,China & muslims would try to invade & take over the US taking away our freedoms God gave us.Marines are trained for tougher fighting & usually chosen for the initial attack prior to the other branches of military are called in.