Just mentioning again, apropos of Memorial Day, that I dislike any mix of patriotism with worship. I think patriotism is great. I am not one of those who believes that one-world or transnational philosophies are more Christian than nationalist ones. They both stand mostly outside the faith, but I lean toward the nationalist ones for complicated reasons.
There is cultural overlap between the patriotic and Christian threads in American society. This is mostly of the enemy-of-my-enemy-is-my-friend variety, however. There are those who loudly hate both patriotism and Christian faith, driving the two idea groups together. But that is a lack of clarity that must be resisted. Worship is worship of a God beyond all our local, temporary attachments. That is orders of magnitude more important than any tribe or nation. I think America is the best grouping in the history of mankind. (Its only competitors in greatness are its sister nations of Anglospheric colonies and perhaps, other groupings derived from NW European cultures.)
Yet there will be no America in heaven. There may be little memory of it, or none. Human beings are eternal; worldly arrangements are so insubstantial as to be mere mist. Our time-bound perspective causes us to think of our poor selves as temporary and our nation and ideals as long-term. The opposite is true.