If he was such a great leader, why did he disregard the advise of his military staff and fight a war on two fronts?
Actually, Hitler didn't ignore his staff. His staff informed him of a massive buildup of Red Amy forces on its Western border, in such a position as to be defensively suicidal for Russia. Hitler said he was advised that this was indicative of an invasion and that a pre-emptive strike was a necessity.
Whether that's true or not, speaking of this in mainland Europe will solicit a 6 month jail sentence, a 10,000 Euro fine and a criminal record.