There isn't one. The Army could compose something similar if need be, but there aren't any regular standing units equivalent to a MEU.
A Marine Expeditionary Unit would be made up of numerous MOS's.
Yes.
The Marine Expeditionary Brigade is smaller than the Marine Expeditionary Force, but larger than the Marine Expeditionary Unit. It is considered the "middle-weight" crisis response force of choice in the European and Southern Command Area of Operations. It is able to operate independently, as a service component, or to lead a Joint Task Force.
Command Element (CE), Ground Combat Element (GCE), Aviation Combat Element (ACE), Combat Service Support Element (CSSE)
It was the Marines of the 24th Marine Expeditionary Unit (MEU) flying from the USS Kearsarge in June of 1995.
In WW2, the U.S. Army, US Army Air Corps, U.S. Navy, U.S. Coast Guard, and U.S. Merchant Marine were all instrumental in defeating Nazi Germany, while the U.S. Marines and U.S. Navy were the leading forces in defeating Japan.
Probably the 31st Marine Expeditionary Unit (MEU) since it's the closest by being stationed at Camp Hansen, Marine Corps Base Camp Smedley D. Butler, Okinawa, Japan .
If they ETS from the Marines and then reenlist into the Army. They won't be assigned to an Army Ranger unit from the Marine Corps.
The Navy Expeditionary or Marine Corps Expeditionary Medal, The Humanitarian Medal (when I was there in 1982), we got a Navy Unit Commendation for saving the lives of the crew of a helocopter that crashed. We didn't get a CAR or an NDM
The centerpiece of the MEU is the Infantry Battalion.
Sizes vary with the structure and the structure varies depending on the needs of the mission. A Marine Expeditionary Force (MEF) is the largest Building Block currently used in the Marine Corps and consists of a Marine Division, a Marine Logistics Group and a Marine Aircraft Wing. It may consist of all or any part of all three elements. Smaller missions might require only a Marine Expeditionary Brigade (MEB) centered around and an Infantry Regiment and Marine Air Group. A Marine Expeditionary Unit (MEU) uses an Infantry Battalion and a Marine Air Squadron as the basic building blocks and typically it will be an Infantry Battalion with the support of an Artillery Battery. It could be much larger if the mission requires more personnel, added armor or specialized equipment to accomplish the mission or to meet a specific threat.
If they ETS from the Marines and then reenlist into the Army. They won't be assigned to an Army Ranger unit from the Marine Corps.