After having won the Second Punic War, the Roman Republic continued expanding by conquering neighbouring territories. It eventually made Greece part of its empire. It also took the coast of North Africa after destroying the city of Carthage at the end of the Third Punic War. In the east, the Seleucid Empire was forced to make concessions to Rome in order to avoid war. Rome came to dominate the Mediterranean Sea during this period. By the end of the century, its army changed from conscription to a voluntary professional force. These changes were known as the Marian Reforms.