Present within the Star Trek universe is a diverse cast of wonderful and intricate aliens, from Betazoid to the ever-changing and assimilating Borg, from the warlike Klingons to the mischievous and omniscient Q’s. However, none are more fundamental and ever-present as the Vulcans and Romulans. These alien races are two sides of the same coin, one representing control and logic, the other fiery emotion and chaos. They are complete extreme opposites of one another, yet stem from the same place. So what exactly is the relationship between the two?