In today's world, it will always be about resources, and painted with ideology, no matter how ridiculous that ideology. Iraq and Afghanistan, for example, painted with a War on Terror, but people in the USA are orders of magnitude more likely to die from police shootings, sugar, lack of access to healthcare, etc.
The ideology comes in when selling the war to the 99%. The resources are for the 1%.
That's why we should stop speaking of conflict over global warming. It won't solve global warming, and it won't help most people.