Is the religion of Islam the main reason for the violence of IS or are there more significant reasons behind said violence?

Political Islam

Ensure that the grammar is 100% and that there is a consistent argument throughout the essay. Is the religion of Islam the main reason for the violence of IS or are there more significant reasons behind said violence?

If there are more significant reasons, why is this and how do these reasons interplay with one another to more clearly explain the reasoning behind IS’ violence?

Attempt to use the readings by Wood and Cavanaugh as the basis but bring in further research as well. Also, please add titles to each of the points/sections.