Why weren't Marines chosen for Normandy?

Because they where all in the Pacific, fighting a completely different battle.

Fuck all that matters is the battle is over and done with carrying on the history of the men should be the main topic, who cares what branch was sent where, we're all American and patriots

There were I am sure many reasons, not the least of which was there were no Marines available in the numbers required to make a difference. While that is the best, it may not be the only one. Politics and inter service rivalries were a very big factor. Roosevelt liked Marines, Eisenhower and Marshall were not fans.

They (our grandfathers) did not have the privilege of fighting next to each other for almost 15 years in the middle east. If they had, the D-Day landing may have had Marines involved.

In addition, the amphibious planning factors, tactics and equipment were in many cases developed in the Pacific theater; so in reality, the Marines were there in spirit if not person.
S/F

Without proper research, as instructed, my best guess would be personnel numbers needed and the intent after the landing. Marines are a smaller force and heavily used in the Pacific theater which involved island hopping and successive amphibious landings that could use smaller groups to secure islands. The landing at normandy was a large scale assault for a on time landing with intent to occupy and secure a sight to keep bringing in troops and supplies in the event of a protracted conflict. The army is an occupying force and the marines are not. The goals of the two theaters saw a better fit for marine expertise in the repeated assaults in the Pacific.

Well I think this is a fairly simple question to answer. First the Marines where still very heavly involved in clearing the islands near and around Japan. Second they were being utilized trained and used in island operation and France is clearly not an island. The amphibious assault was a very small and short part of the operation I would think they did however use lessons learned from the Marines operations while planning the envision. Last reason why is the military did not start conduction cross service missions till later on down the time line. The first joint operation was a complete disaster when they tried to rescue the hostages from the embassy in the 80's. Now of course I am not completely sure about the last statement but I am confident I am right. Oh and also the Marines are a fairly small orginazition compared to the army and the Navy the Air Force was the Army Air Corp. at the time so anyway on to my point if they pulled the Marines to support the invasion of France who would be left to hold and countinue to fight on the islands near and around Japan.

Ok. No Google search. Here goes. Maybe because the Marines are more focused on conquering smaller areas, I.E. islands, while the Army is designed to move across vast amounts of land, I.E. Europe. Or because the Marines were already allocated to fight the Pacific island battles. Or maybe because the Army had more troops which was needed for the European war.

probably for the same reason Army wasnt chosen for Iwo Jima...two different wars, two different styles...

If I'm not mistaken they were busy in the Pacific theater during this time.

Numbers/expected casualties army had more bodies. Look at numbers lost that day vs how many marines we had at the time.

Were there any Marines NOT in the Pacific?