Obviously not. There is still the Army. Additionally, Marines - which do not have a medical corps - also have Navy support elements. There's also other elements of the Navy, such as the Construction Battalions (Seabees) and SEALs, not to mention that the Navy's Explosive Ordinance Disposal is the only special ops capable EOD in the entire military, plus there's the Air Force, whose Tac-P personnel call in airstrikes (and they perform this function as attachments to Army and Marine units both), Air Force pararescue to retrieve downed pilots, etc.
PLUS, there are the allies supporting the US mission in Afghanistan.
No. Any Combat Job in the Military can still found on the Front Lines right now.
navy
MARINES
The Navy
The US Marines are a military branch of service. There is a RECORD of every person serving in the US military.
The marines do not use submarines. Only the Navy does.
marines
Marines Corp.
Marines corps
Army and Marines.
The Marines
The US Marines use the Osprey.
The marines wing of the military has better opportunities and responsibilities as compared to the army.