The Alliance to Restore the Republic (2 BBY–4 ABY), commonly known as the Rebel Alliance, Alliance, and the Rebellion, was a resistance movement formed by Senator Mon Mothma to oppose the reign of the Galactic Empire. The Alliance was publicly and formally declared with the Declaration of the Rebel Alliance, which brought numerous rebel cells together as a common force opposed to the Empire. Indeed, the concept of a "Rebel Alliance" had its roots in smaller movements that had worked to unite disconnected cells, such as a movement secretly led by fellow Senator Bail Prestor Organa and a rebel network formed by revolutionary Luthen Rael, who received funding and aid from Mothma. Such early groups and the eventual Alliance came together from a number of unrelated rebel cells, including the crew of the Ghost and the Phoenix Cell. The Atrivis Resistance Group was one of the first cells to join what Mothma began calling "the Alliance" before the formal formation of the Alliance to Restore the Republic.