Islam rejects blind and unjust patriotism and nationalism. If nationalism/patriotism means:
1- We feel superior to other nations
2- We support our country even if it commits injustice
3- We exploit other nations

Then Islam rejects that

However, loving your land/country is recommended in Islam:
1- Loving your country makes you want to make your country a better and more just place
2- Help people in your country

Then this is recommended.

There is one hadith that state, “Loving your homeland is part of faith.”