切り捨て

“Kirisute- cutting a person down (without a second thought)”

“Daijinomaenoshouji- small sacrifice in a great cause”

Ok, so this is a twisted picture because this expression is obviously referring to something normal, but Griffith thinks of his army as people he can use to get where he wants to go, which is the top, of course. So here he is using the people who are loyal to him as a staircase leading to the highest point obtainable.