Fourth Fleet

Background:
The Fourth Fleet was a large fleet within the Imperial Navy and later the Yul Navy. Commanded by Grand Admiral Doom and Admiral Pellaeon. The fleet was stationed over Byss for the duration of it's time.

After the death of Grand Admiral Thrawn. The fleet was deployed to Lothal to deal with the growing rebellion.

Stationed at Byss:
During the early years of the Galactic Empire. Pellaeon was stationed at Byss as captain of The Duchess, an Imperial two class Star Destroyer among the Fourth Fleet. Around three years after the Jedi Purge. Grand Admiral Doom received command of the fleet from the Emperor. For the next fifteen years, the fleet would remain stationed in an orbital blockade around Byss. With The Phoenix, The Duchess and the Harbinger heading out to deal with Rebel threats.

Stationed at Lothal:
In 0 BBY. The Fourth Fleet was transferred to Lothal under the direct orders of the Emperor. Taking up a standard Imperial blockade formation. The Fourth Fleet remained in tight formation.

Naboo's Base Delta Zero:
With increasing Rebel support. Grand Admiral Doom ordered the Fourth Fleet to Naboo where, with permission from the Emperor, Darth Vader and Grand Moth Tarkin. Broadcasted the complete destruction of the world to the galaxy. They were joined by the Seventh Fleet which then became a permeant part of the fleet.

Tie Defender Factory Defense:
Shortly following the Base Delta Zero of Naboo. A Rebel fleet lead by Admiral Raddus and Sabine Wren aboard The Profundity, Arrived to destroy the Tie Defender Factory. The Fourth Fleet remained in orbital blockade but didn't engage as Doom gained a Tie Defender and dealt a devastating blow the Rebel fleet. Taking down two thirds of their fighter support, six of the CR 90 escorts and damaging The Profundity beyond repair.

Krownest Ambush:
A detachment of the Fourth Fleet was dispatched to Krownest to draw out Sabine Wren. Admiral Pellaeon lead the detachment aboard The Duchess where he quickly used his knowledge gained from working under Doom to capture Ursa Wren. While the initial goal was not met. This event lead to Doom discovering where the Rebel base was located.

Lothal blockade:
Following the semi success at Krownest. The Fourth Fleet remained in an orbital blockade above Lothal. Keeping their distance while several other fleets start to gather and monitor the Rebel tactics and strategies in the systems surrounding Yavin.