The Vance-Mendez War was a giant war in Grand Theft Auto: Vice City Stories fought between the Vance Crime Family and the very powerful Mendez Cartel. The people involved in the war were Victor Vance, Lance Vance, Louise Cassidy-Williams, Phil Cassidy, Umberto Robina, Armando Mendez, Diego Mendez, Ricardo Diaz, Reni Wassulmaier, and Jerry Martinez.