Same here man World War 2 was a pretty interesting period and there is plenty of literature and stories to back that claim up.
I find that if I read the same type of material one book after the other, I get kinda bored, so I tend to jump to the other end of the spectrum, as the last book I read, to try and keep things fresh. Try, sometimes I stray of course a bit as I did when I read Goblet of Fire and OotP back to back.