Final answer:
Sulla strengthened the Senate's power, conducted proscriptions against his enemies, and attempted to prevent military figures from leveraging their armies politically; however, his measures ultimately failed to prevent future conflicts and proved the military's influence in politics.
Step-by-step explanation:
After the rivalry and conflict between Sulla and Marius, Sulla became the dictator of Rome in 81 BCE and implemented reforms to prevent similar revolts. He significantly strengthened the power of the Senate at the expense of the Plebeian Assembly, conducted a series of proscriptions where many of Marius's supporters were executed and their property seized.
Sulla's constitution aimed to restore and strengthen the traditional Republican institutions and to prevent powerful generals from using their armies for political gain, a problem highlighted during the conflicts between Marius and Sulla. Yet the lasting impact of his dictatorship was to demonstrate the military's overwhelming influence on Roman politics. However, after his retirement, the problem of military generals holding power continued, setting the stage for future turmoil within the Roman Republic.