De or het islamideologie?

The correct Dutch article is:

de islamideologie

Rule Words ending in -logie: always de. See the rule

How to use islamideologie

the islamideologiede islamideologie
this islamideologiedeze islamideologie
that islamideologiedie islamideologie
our islamideologieonze islamideologie
your islamideologiejouw islamideologie
every islamideologieelke islamideologie
which islamideologie?welke islamideologie?
a big islamideologie / the big islamideologieeen grote islamideologie, de grote islamideologie