Saudi Arabia's powerful Crown Prince Mohammed bin Salman said on Sunday an attack on an Egyptian mosque that killed more than 300 worshippers would galvanise an Islamic military coalition that aimed to counter "terrorism and extremism". MbS, as the crown prince is widely known, vowed to "pursue terrorists until they are wiped from the face of the earth."
Top defense officials from 40 Muslim-majority nation's met in Riyadh on Sunday. They are part of an alliance gathered together two years ago by Prince Mohammed, who is also Saudi defence minister. 

MbS has said he would encourage a more moderate and tolerant version of Islam in the ultra-conservative kingdom.
Prince Mohamed told delegates that Friday's attack in Egypt "was a very painful occurrence and must make us contemplate in an international and powerful way the role of this terrorism and extremism". MbS also declared that, "In past years, terrorism has been functioning in all of our countries... with no coordination. This ends today, with this alliance."
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