The Resource Wars were a series of armed conflicts fought in the years before the events of Dead Space. The wars were fought over the nearly-exhausted resources of Earth and the dwindling resources of it's colonies. The conflicts began to subside with the invention of Planet Cracking and ended by 2508.
Gabe Weller and Nathan McNeill served together during the Resource Wars. On Scorpio 6, McNeill saved Weller from a three-way firefight when he was injured. Sometime after the Resource Wars ended, the two went their separate ways,with Nathan becoming a detective for P-Sec and Gabe becoming a security officer on board the USG Ishimura.