As you’ll recall, the Resistance was nearly wiped out at the end of The Last Jedi, and with Star Wars: The Rise of Skywalker taking place one year later, Journey to Star Wars: The Rise of Skywalker — Allegiance (as well as the novel Star Wars: Resistance Reborn) is exploring Leia Organa and the other main characters trying to rebuild the organization.
The second issue of this comic book series sees Leia, Rey and Rose Tico arriving on Mon Cala to request assistance, only to be met at gunpoint by some of the Mon Calamari and Quarren inhabitants.