“The Serbs are among the rare nations that were completely on the right side in World War II, and Serbia has nothing to be ashamed of regarding the fight against Nazism, says Israeli Ambassador to Serbia Yossef Levy.”
Well, mostly.
http://en.wikipedia.org/wiki/Serbian_Volunteer_Corps_%28World_War_II%29
http://en.wikipedia.org/wiki/Government_of_National_Salvation
And then the “gray” area: http://www.cbsnews.com/news/world-war-ii-general-draza-mihailovic-gets-nazi-treason-conviction-tossed-by-serb-court/
Honorable men could, imo, choose to be anti-Nazi or anti-commie.
OTOH, there were also opportunists and collaborators who made similar choices for entirely dishonorable reasons.