No conflict involved? Ever? Does that mean that you believe every policy held and every action done by the USA is in full agreement with the Word of God?
I understood the OP to be asking about priorities. Which is more important to us - our earthly nationality, or being in Christ's kingdom, that kingdom which He tells us is not of this world?
Hmmm, I wonder how many British subjects had a conflict back in 1776 - attending a church in the colonies with a pastor who believed that you should revolt against your Crown?