How many people were in the marine corps World War 2?

Answer 1

The Marine Corps reached a strength of around 760,000 men during the war. Of course, nowhere near all of these saw action. Many were in training commands in the states, in Marine detachments aboard capital warships, guarding embassies around the world, just like today.

Most Marines got rotated back to the states if they survived three campaigns. Many old hands were already back in the states before Iwo Jima and Okinawa, and many of the men in those campaigns were on their third operation.

By 1945 there were six divisions of Marines deployed, all infantry, all in the Pacific. The Marines maintained the Table of Organization strength of line companies at early levels, unlike the army, which had to reduce its company strength by over 20%. So Marine Divisions were a bit larger than Army divisions - around 18,000 and compared to just under 15,000. There were also at least one Marine Tank Battalion deployed and several Air Wings.

The WWII Army was more than ten times larger than the Marine Corps, and fielded 91 divisions, plus a couple of thousand independent battalions of various types - tank, tank destroyer, artillery of various calibers, engineers, signals, and other combat arms.

There were fifteen or so US Army divisions in the Pacific, in addition to the six divisions of Marines.

Answer 2

there was 1