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Additionally, while our users may be able to give you a hand here, you may also like to check out our six-part series, "Finding and Understanding Sources", which should hopefully be handy as you continue your work.
This question has been asked and answered four or five times in the last few months ... not to discourage further discussion, but you could check out these threads while you're waiting for a response here:
• How is the concept of "Second Thirty Years War" (1914-1945) view by most historians?
• Do any historians actually consider World War I and World War II as one big, long war?
• Can WW1 and WW2 be seen as one single, huge war, with a 20 year ceasefire?
• Could it be reasonably argued that WWII was just a resumption of WWI?
• Can WWII and WWI be considered two phases of the same war fought years apart?