Actions of former US President George W. Bush and former UK PM Tony Blair were responsible for formation of ISIS. The story of course began with hijacking of four planes of the USA by the terrorist organisation, Al Qaeda and striking two of them against World Trade Centre in the early morning of 11th September, 2001 when Bush had just become President of the country USA in January, 2001.
The British rulers before partitioning India, created the grounds for Kashmir problem. In fact, they being cunning people, wanted to divide into many countries. For this purpose, they gave certain options to over 500 princes who were subjugated by them in India.
By killing innocent foreigners, ISIS terrorists have infringed upon the instructions given in Quran, which state that if one has killed an innocent person, it would be as if he killed all mankind and God has made us into nations and tribes.
ISIS terrorists are resorting to forced conversion of captives thereby flouting the Quranic injunctions viz., (i) there is no compulsion in religion, (ii) All (Abrahamic) religions are equal,(iii) insult not those whom they worship besides Allah and (iv) stand up firmly for justice.