Should Army and Marines (or components of) consolidate?

Cross train, perhaps.
Consolidate, no!

Only when the Air Force learns how to fly submarines.

A common logistics corps would may work fine, and probably save a lot of money at the same time. Leave the rest alone.

So I just came across this post and felt the need to answer. Why would we combine the Navy's fighting force? Regardless of how they feel about themselves, there IS NO Department of the Marines. They work for the Navy. They are transported on Navy equipment and they get their officers from the Navy. It works, to combine the two different departments would be foolhardy. The Army does not understand Navy stuff (the only reason I do is I did some Navy time before going Army).
All of this being said, the Marines have their own traditions which have been mentioned in a lot of posts previous.

NO!

Should be 1 Military Police. We all work together and have patrolled together. Except for the Uniform our training and Jobs are the same. I'm a Former Army Military Police Sgt. In the past, I don't know about the present we all patrolled together when deployed. My unit and I have patrolled together with Marine Military Police, Airforce Police etc. Sometimes we policed the Marines while their M.Ps were located miles away with another unit in country etc. The M.P.s I know feel that they rise above all else and Uphold the highest Standards. We Represent the Military conduct and live the values. As we all know uphold and enforce the Uniform code of military Justice. I could see this being The United States Military Police Corps. with a higher consolidated training and knowledge of all the services merging and just being one. Right now, the M.P's are a Duplication of service which is unnecessary. The M.P.Corps Should be under their own budget. and put out their to Police our Military, all of the branches from the same Office.

I think they should consolidate as far as support services goes. Specialty jobs should retain their symbols, awards, badges, dress uniform for tradition. But support services are the same across the board and should be interchangeable.

only if the Marines are in charge, the army has to many rules in combat and they get people killed. The Marines have rules but this rules combat I believe

It is nice to read the responses with some actual perspective and it is always refreshing to read a comment from someone who has broad experience. I simply served as a wheeled vehicle mechanic in a combat engineer battalion conducting route clearance missions. I would not feel comfortable espousing how much greater the Army is over the Marines from my limited 4 year active duty experience in a particular unit. It is just too narrow of an experience and I think it is important to acknowledge that. I understand pride is the root of much of the strong convictions, but the truth lies in the middle as it does in most circumstances. Both branches are successful in what they do and could always learn from each other's strengths. To make a statement regarding the larger question: Should the Army and Marines consolidate? Seems to me the answer is no. There are no high level talks that I know of regarding the issue, thus I come to the conclusion that the individuals entrusted in evaluating such issues/questions have determined it unnecessary in the current and near future DoD structure.

Personally, I think we should disband all Army/Navy/Air Force SPEC OPS and combat arms, disband all Marine Corps non-combat arms, have the Marines take over the combat arms and SPEC OPS functions for ALL branches, have the Army there for land logistical support, and the Navy for sea support and transportation. As far as the Air Force is concerned, pop their inventory over to the Army and Navy, make all of them DoD civilians, and have them in charge of cyber and space command as part of Homeland Security.