Yes, "Southeastern" in "Southeastern US" should be capitalized as it is part of a proper noun.
Oslo is the capital of Norway, located on the southeastern side of Norway close to the border with Sweden. Oslo is both a capital and county.
Vestfold is a tiny little county on the southeastern side of Norway. There are fourteen municipalities within Vestfold. Tonsberg is the administrative center.
Telemark is a county in Norway that is located on the southeastern edge of the country. This county has a total 18 municipalities. Skien is the largest and the capital city.
You are in the southeastern side of Norway. Right next to Sweden
Norway
Norway is still situated in Europe and has not arrived in the US.
Yes it is. It is in the southeastern US, below Georgia.
The area of Hedmark is a little over 10,000 square miles. Though it is not very large, it is still home to almost 200,000 people. It is located in the Southeastern part of Norway.
The Pacific Ocean.
tennessee
southeastern us or gulfcoast