An assault fleet, under the command of a fleet admiral within the Imperial Navy, consisted of a specific structure. This structure included two transport forces, two force escorts, a force technical services element, and a force support element, totaling around 376 starships. The design of assault fleets followed the "1/4/16/64 Plan," a concept focused on versatility and adaptability. This plan stipulated that an assault fleet should possess the capacity to execute a single corps-level operation, four battlegroup-level operations, sixteen regimental-level operations, and sixty-four battalion-level missions.
Notably, Assault Fleet EM4 was among those that participated in the events of the Galactic Civil War.
- Imperial Sourcebook
- Imperial Sourcebook, Second Edition
- The Far Orbit Project
- Star Wars: Imperial Handbook: A Commander's Guide