What led to the fall of the Roman Republic?

TTHE WARS OF CONQUEST created serious problems for the Romans. The republican constitution had suited the needs of a simple city-state, but it was inadequate to meet the requirements of Rome’s new position in international affairs. New armies had to be provided for defense, and systems of administration and tax collection had to be created to support the republic. The people of the Roman Republic came away from the war with differing needs and expectations. Roman generals, who had commanded huge numbers of troops for long periods of time, acquired great power and ambition and were becoming too mighty for the state to control. At the same time, non-Roman inhabitants of Italy who had fought in the wars of expansion began to agitate for full Roman citizenship. Some individuals, including military contractors, profited greatly from the foreign wars, while average soldiers gained little. These complex and explosive problems largely account for the turmoil of the late republic (133–27 B.C.E.).

image
Julius CaesarIn this bust from the first century B.C.E., the sculptor portrays Caesar as a man of power and intensity. Showing individuals as representing certain virtues was common in Roman portraiture. (Museo e Gallerie Nazionali di Capodimonte, Naples, Italy/The Bridgeman Art Library)