Also, Muslims have rules of engagement when fighting to expand Islam (jihad) e.g. they must first invite non-Muslims to convert to Islam. If they refuse, they can then be attacked. In some circumstances, Christians (and others?) who refuse to convert may be allowed to live, but as 2nd-class citizens who a treated poorly and have to pay a tax to keep their heads. This is know as dhimmitude.
Also, apostates (those who leave Islam) can be killed.
And Muslims who are not following Islam correctly may also be killed sometimes. They are called "hypocrites", I think.
Also, apostates (those who leave Islam) can be killed.
And Muslims who are not following Islam correctly may also be killed sometimes. They are called "hypocrites", I think.