From Back Cover: The struggle between the First Imperium and the Terran Confederation has always been a pivotal era in Marc Miller's Traveller universe. Now, for the first time, Traveller players can explore this rich setting. Interstellar Wars covers 200 years of war, peace, and overwhelming change as the ancient Vilani Imperium falls to the upstart Terrans. Forge new trade routes within the Imperium. Defend the homeworld from invaders during the Siege of Terra. Make first contact with alien races. Help guide the Confederation in its expansion from a single planet to a star-spanning empire. GURPS Traveller: Interstellar Wars is an official GURPS Fourth Edition sourcebook for the Traveller universe. It includes a detailed timeline, along with rules for starship design, interstellar trade, exploration, ship-to-ship combat, and tailoring characters to the last days of the First Imperium.