In order to have dar al-Islam no infidel can reside in the land. The land must be purely Islamic. This was the prime tenet of Osama Bin Laden’s war edict (fatwah on the USA). Bin Laden used verse 9:5 as justification for this edict. He wanted all infidels out of Saudi Arabia and that included American bases. To have an infidel/non-believer in a land that is purely Islamic is sacrilege to Islam’s way. When there are no more unbelievers in the land, Sharia law and the Quran the highest authority then and only then can a land be proclaimed dar al-Islam. To date there is no Islamic country that meets all of these requirements. Let’s be brutally honest here. The part where the non-believer pays the jiziyah for protection money is only to determine if the non-believer will convert to Islam eventually. They pay with undo humiliation as such is described in 9:5. All non-believers in the land of dar al-islam either must convert or die. There is no third option because it ruins the sanctity of a house of peace. Their god proclaimed the entire Earth shall be dar al-Islam. Meaning the entire Earth and her lands shall be in submission to their god. This doesn’t bode so well for the athiests or LBGT crowd. Nor does it boast well for anyone not a believer of Islam - someone who has said the shahada 3 times in front of Islamic witnesses.
Conquered lands with infidels living in them is dar al-Harb as the land is still at war with the non-believer.
bode = boast