Military: War
It did not take long for the short-lived races on the Savage Isles to once again start warring against each other. This started missionaries spreading different faiths, but when they were met with violent ends it quickly escalated and before long the entire Savage Isles were embroiled in war.
After the war with the great evil, the short-lived races no longer had to live in fear and could take back the land they had left behind. Soon after many of those who had left to partake in the war against the great evil, returned and further limited the resources before the land could be fully developed. During this many missionaries turned to the gods for help and argued that if only everyone would turn to their own god, he could help them. In the end, many of these missionaries were rejected or outright killed. This called for revenge and that revenge grew to become wars between the many different races.