The Israel - Palestine conflict also has a role to play in this.
The Israel - Palestine conflict has nothing to do with this. Israel is actually supporting the ISIS. A few months ago, they bombed the Syrian army positions, in order to help the ISIS in gaining territory. Another NATO member, Turkey is supporting the ISIS by issuing passports to its fighters, so that they could travel to Iraq and Syria to join the fighting.
Basically no one want to stop ISIS, everyone has a little bit of responsability in this situation
.Thwy are bombing their relion praying places mosques so bombing church is not an interesting thing. I dont believe even they are believing any religion.
Not that simple. The ISIS has never targeted a Sunni place of worship ever since its creation. They have mostly targeted Yazidi, Christian and other non-Muslim places of worship, although they have rarely destroyed some Shiite mosques and shrines. It will be foolish to say that religion has no role to play in this.
This, they are saying "we are muslims" but they do not know what is the meaning of "Islam".