[franksolich]

While some units (such as the 1st Infantry Division) were in constant combat during the war, individuals were not only rotated into, but also out of those units.

I am under the impression one could get "rotated out" only by getting wounded or killed.

[Mr. Lucky]

Obviously, I don’t have any personal experience, but my dad told there was a point system of sorts.

[Mr. Lucky]

The 1st Infantry Division was seriously engaged in North Africa, Sicily and Europe. Most of the veterans of one campaign were not involved with the others. Once the Division was engaged, however, no one was rotated out.