The Bible tells us in Galatians 3:28 that there is “no jew or greek” if we are in Christ. Additionally there is no male or female, slave or free either. The things that identify us as temporary residents in this world, are replaced by a new identify in Christ.
If you were going to ask the question, “what nation do I belong to?” You would have to consider that actually we belong to the kingdom of God. Our identity isn’t found in being Australian, Indonesian, or any type of Asian, Indian or African. Our identity is as children of God.