Which Nation, when, and how?
Islam does not recognize the concept of nation in the limited sense we understand, like a group of people associated with a particular territory. These are boundaries we create based on our own convenience. By the way, according to dictionary, by nation, it can also mean community of persons not constituting a state but bound by common descent, language, history, etc.
when, and how?
It is the law of nature that constructive forces overcome destructive forces: it can not be otherwise: but the speed at which these constructive forces overcome is (according to our standards) very slow: God’s single day is equal to one thousand (or rather fifty thousand of our) years: 32:5, 70:4 but if we show conviction and trust in the laws revealed through wahi we can ensure our own peace and help to safeguard the peace and security of humankind and then the results start to be formulated and manifested according to our measure.
No one, including Shabbeer indicates that "in themselves" in 41:53 means "in their Nations", as you (Optimist) indicate (within brackets).
As I told you Islam does not recognize national/ territorial concept and hence this unique expression.....the whole world belongs to Allah and the whole world has to follow Allah's Laws.....and by the way,
41:53 could also mean the external universe and human world. You always comes up with objection only, never care to explain the verse(s) for everyone to understand what is actually stated in the verse(s) as per your understanding.
Regards,
Optimist