My opinion is, God tell Daniel there will be 4 major King or Nation, from the time He talk to Daniel to the end time.
And the last kingdom is leopard.
I would offer the gospel in not after the respect of the corrupted flesh of nations The gospel is not about corrupted flesh and blood men that do not know God as political nations. The gospel is the gospel of truth .
Its not things seen that we wrestles against or do we receive power from it . Like Jesus we have the treasure in us but not of the will or lust of the flesh But the will of the father that works in us with us making our load lighter. Our cry like His father not as I will but according to the power of yours
2 Corinthians 4:7 But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.
2 Corinthians 4:18 While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eternal.