I'd expect that he has issues with the "conquer we must..." line.
But, when freedom is threatened, war is always an option, even when it is God's people. Perhaps not the first option, nor the preferred option, but an option nevertheless.
We're not talking about God's people here, we're talking about a kingdom of the world here. It's nationalism mixed with gospel. The USA or any other earthly kingdom slaughtering in God's name is, putting it mildly, horrific.