It’s the true American story of a legendary family feud — one that spanned decades and nearly launched a war between Kentucky and West Virginia. Hatfields & McCoys, a three-part miniseries on the History Channel premiering on Memorial Day, showcases an all-star cast led by Kevin Costner and Bill Paxton. It chronicles a clash of clans that inspired passion, vengeance, courage, sacrifice, crimes and accusations, while forever transforming the two families and the region they lived in. On history.com, fans can tweet and pick a side. At the time of publication there were 670 tweets for the McCoys vs 586 for the Hatfields. On Facebook, fans can fill out a questionnaire to determine their allegiance between the two epic, warring families for a chance to win a new flat screen TV.