We already are fighting over resources. The West for example are overly invested in Ukraine yet Putin is unbeaten and might take the country for themselves to which the West has to fight over the resources they want from the country. Knowing that Ukraine has what they need like the Lithium for batteries, the war could get worse.

Africa has a ton of resources so look at what they do to the countries in there, to this day not their own country is taking the benefit from what they have. But their resources keeps the economy running though.