Lets say there are villages in settlements outside of dar al islam. Are muslim armies allowed to kill and enslave them by surprise if they are in dar al harb? Is asking them to convert or pay jizya a pre-requisite before attacking them? Are civilians of a settlement, tribe or village killed if they are non-combatants?

Are Muslims living in Muslim-majority countries required to turn their countries into Islamic governments with enforced Sharia law? Or are they allowed to have secular governments even in Muslim-majority countries?

If there is an Apostate from Islam who has fled darul Islam to Darul Kufr, then is it still obligatory to execute the apostate or is it okay to treat him as just a regular non muslim?