Thank you

Hi,
I am looking to play A&A again after a pause of over 20 years. I am looking at buying both 1940 versions. Until i buy them i want to read the rules and re-learn the game. There is something puzzling me. It seems that the rules i found here http://www.axisandallies.org/node/438 say that there is 6 countries playable but a pdf from Wizards says only 4 countries
http://www.wizards.com/avalonhill/rules/axiseurope.pdf

Can you clarify please and be nice

Roptik