Luxembourg is one of the minor nations in HOI4. It is one of the absolutely tiniest nations, considering it starts off with only one province. It has very in the little way of resources, manpower or industrial power.
Luxembourg is a miniscule concern to that of the great powers. Its position in the middle of France, Belgium and Germany saw that it would be part of the important Benelux Region. It has very little significance in the greater schemes of the great powers, and usually is barely a footnote in history.