The so-called Vex crusade was supposedly an organization headed by an alien known as Sandewar Mandewar. Around 1 ABY, the infamous doctor and smuggler Cornelius Evazan, while using the alias "Lopset Yas", feigned a demonstration of his shape-shifting talents for the disreputable archaeologist Chelli Aphra; he transformed into what he believed Mandewar looked like. Moreover, Evazan stated that this alleged alien was the leader of the Vex crusade.
The comic Doctor Aphra (2016) 21, released on June 27, 2018 by Marvel Comics and penned by Si Spurrier, contained a reference to the Vex crusade. The capitalization of "crusade" remains uncertain because of the way speech was capitalized in the comic.