Operation Sandstorm

Operation Sandstorm was a conflict on Tatooine that included numerous and various forces; it was fought between those who affiliated with the Galactic Republic and the Sith Empire, respectively.

Coalition Forces
Representing the Sith Empire on one side consisted of numerous factions, most notably the Order of Requiem and Blood Honor. The Crusaders of the Oath (Imperial side) also participated, as the fight was originally their's to begin with, but they lacked the numbers are sought support. Which as an ally, the Order of Requiem proudly agreed to aid their counterparts.

On the opposing side of the battle, the Crusaders of the Oath (Republic-side) stood by themselves in order to represent the Galactic Republic.

Result
In an overwhelmingly lopsided battle, the Sith Empire's representatives prevailed as victorious. This was mostly because the joint leadership of-- Darth Callous, Darth Jyseria, and Darth Vears.

The Order of Requiem and their Emperor, Vears, were credited with providing more than enough forces to completely defeat the Crusaders of the Oath. The battle consisted of more than sixty participants, in which the Crusaders of the Oath (Republic side) only accounted for a mere fraction of the grand total.