depends how you classify “religious war”
Francis Bacon said there were five causes for holy war: (he wrote in a Christian context, but the categories would be usable by any faith)
to spread the faith
to retrieve countries that were once Christian, even though there are no Christians left there
to rescue Christians in countries that were once Christian from ‘the servitude of the infidels’
recover and purify consecrated places that are presently being ‘polluted and profaned’
avenge blasphemous acts, or cruelties and killings of Christians (even if these took place long ago)
so in that context there have been no recent holy or religious wars in the west.
However the Arab-Israeli conflict, although strongly nationalistic is also heavily coloured by the inextricably linked religions, so religion can be a massive influencing factor in war and a major block to the peace process as those of other religions are seen as less human or to have less worth than the righteous who have god on their side, so why negotiate.
It should also be noted that all major current conflicts are between countries with differing religions as someone of a different belief system is a very convenient bogeyman for the hawks in all modern governments
So it’s not always people who “want more power” that start war, it’s “people who want more power and can gain mass support from their citizens by using religion as the easiest justification”