Here is how I see it ----
"Ideology" definition: a body of ideas that reflects the beliefs and interests of a nation, political system, etc. and underlies political action.
This definition fits islam to a T.
1) Islam, has militaristic connotations - a body of ideas that reflects the beliefs and interests of a nation, political system, etc. and underlies political action.
2) Muslims also believe in the inherent goodness of people as over against the Christian doctrine of original sin - all you need to be "saved" is to be Muslim - unlike the notion of original sin which requires a Christian to struggle for grace.
3) Muslims need guidance and that guidance is the Islamic law, an all encompassing system that controls every aspect of everyday life.
"What is needed is a Muslim government to provide the legal and social framework necessary to facilitate submission to the law. There is no separation between the sacred and the secular, between church and state. This community is one, universal, and cohesive..."
From Dr Samuel Schlorff, "Can you explain for me the Mindset of the Islamic Terrorist?" Arab World Ministries, 2001
Since its origins - islam/ or Mohamed's revenge on Jews and Christians and anyone who does not submit - has used force - violent military action - subjugation, enslavement, mass atrocities, and genocide even to this day - to achieve its goals.