Werewolf is absolutely correct. While it may be brutal and savage, this war is a consequence, as are these desparate fundamental islamists springing around the world in the last several decades. I honestly feel sorry for these lost people, on humanitarian level, it is not actually their fault, for millions of young Muslims everyday injustice, perceived insults and aggresions have lead to them developing ever more extreme ideas and willingness to fight to death. The West allied with worst scum in Muslim world, opposed progressive and popular movements at each step, and continues to do so. Poverty, desparation and poor life prospects are the root cause, and people being naive and shortsighted, choose radical Islamism in an attempt to change things, not in small part thanks to foreign funded extremistimams and mosques. Of course, that choice is encouraged and being counted upon, since primitive and religious fundamentalists are no match for developed countries and keep the region in turmoil and chaos.
Stepping in and attempting to kill every extremist is the wrong and futile way to solve it, and cheering while such things are happening is wrong, in my opinion. That being said, when things escalate to situations like Syria, Iraq and Yemen, first step is obviously defeating them militarily. What comes next defines the final outcome, post-Saddam Iraq shows the danger. I genuinely hope Russia finds a way to bring lasting peace to Syria and Iraq, extinguishing at least some of the religious hate in the process. For Yemen, there is no light at the end of tunnel, as long as Saudi Arabia, UAE and Qatar are friends of the West, there is little hope for Yemen getting back their legal territory and sovereignity.