This book is about space forces and how they fight. A navy's forces, its fighting arms, are the core of those organisations and Trillion Credit Squadron allows players to construct, deploy and engage these fleets. Also detailed are rules for running and fighting tournaments in Traveller, while other chapters give everything needed to set up a campaign with planetary budgets, construction allocations and diplomacy. Several new systems and weapons available to a fleet are presented, and there is also the 5th fleet, a detailed look at a combat fleet and all of its assets, as well as how it operates on the move.This product requires the Traveller Core Rulebook.