Sulla, who opposed the Gracchian "popularis" reforms, was an optimate; though his coming to the side of the traditional Senate originally could be described as more reactionary when dealing with the Tribunate and legislative bodies, while more visionary when reforming the court system, governorships and membership of the Senate. As such, he sought to strengthen the aristocracy, and thus the Senate. Sulla retained his earlier reforms, which required senatorial approval before any bill could be submitted to the Plebeian Council (the principal popular assembly), and which had also restored the older, more aristocratic "Servian" organization to the Centuriate Assembly (assembly of soldiers). Sulla, himself a patrician and thus ineligible for election to the office of Plebeian Tribune, thoroughly disliked the office. As Sulla viewed the office, the Tribunate was especially dangerous and his intention was to not only deprive the Tribunate of power, but also of prestige. (Sulla himself had been officially deprived of his eastern command through the underhand activities of a tribune.) Over the previous three hundred years, the tribunes had directly challenged the patrician class and attempted to deprive it of power in favor of the plebeian class. Through Sulla's reforms to the Plebeian Council, tribunes lost the power to initiate legislation. Sulla then prohibited ex-tribunes from ever holding any other office, so ambitious individuals would no longer seek election to the Tribunate, since such an election would end their political career. Finally, Sulla revoked the power of the tribunes to veto acts of the Senate, although he left intact the tribunes' power to protect individual Roman citizens.