Well well the war attentions there might be starting
The natural resources found on the territory of Serbia include coal, iron ore, oil, gas, gold, silver, copper, zinc, antimony, chromite, magnesium, pyrite, limestone, and marble
Lots of lithium was found in Serbia and this is the most valuable natural resource on their territory. Europe could cover 80% of it's lithium demand by exploiting the lithium findings in Serbia. I don't know where did you get the info about lots of precious metals, coal, oil and gas found in Serbia. Maybe you should post a link to the source of information. I don't think that there's going to be a war in the western Balkans anytime soon. The USA/western countries simply don't want another proxy conflict in the world and Serbia has a weak army. Russia wouldn't send forces in Serbia because the Russians are 100% focused on Ukraine.