On scale, have a look at Nigel Davies post Statistical confusion – whose troops actually did the fighting in World War Two. Nigel's blog is well entitled Rethinking History.
I mean at some point to write something on this one. For a number of reasons that I won't bore you with now, I suspect that modern Australian perceptions of WWII have become a tad twisted. In the meantime, Nigel's post provides a useful view.