Plenty of WW2 games. Company of Heroes is by far the best. Only trouble is that it makes you do too many things at the same time to the point where it's not so fun, damn RTS games. But it's still great.
Disclaimer: Any sarcasm in my posts will not be mentioned as that would ruin the purpose. It is assumed that the reader is intelligent enough to tell the difference between what is sarcasm and what is not.