Because hes removing ww2 veterans from being celebrated. You know, the veterans who killed the Nazis. Hes also leaving out veterans from other wars, such as Vietnam and Iraq, but theres a reason why hes making sure to go back before WWII. It might have something to do with the Nazi fascists in his circle, like the richest man in the world who sieg heiled twice at his inauguration. How does this need explaining? I dont know if youre genuinely confused or not but your posts just come off pretty plainly as bad faith inquiry.