The Military of Greece consists of the Hellenic Army, the Hellenic Navy (HN) and the Hellenic Air Force (HAF), with the Ministry of National Defence being the government authority. Greece has around 177,600 active soldiers as well as around 2,000,000 reservists due to the compulsory conscription in Greece.
The military history of Greece stretches back more than 2,500 years. Between 499 BC to 449 BC, the Greek city-states defeated the Persians in the Persian Wars. Towards the end of the century the two major powers, Athens and Sparta, clashed in the Peloponnesian War, which ended in Spartan victory. Around seventy years later most of Greece was occupied by the Macedonians under the command of King Philip II of Macedon. His son, Alexander the Great, led a Greek army in the conquest of the Persian Empire, reaching as far as India. On Alexander's death his empire split into many small successor kingdoms, the last of which, Ptolemaic Egypt, became a Roman province in 30 BC after the death of Cleopatra.
The Greeks stayed under Roman control for around 400 years until the split of the Roman Empire, after which they became part of the East Roman or Byzantine Empire, in which Greeks and Greek culture played a dominant role. After the Fourth Crusade took the imperial capital of Constantinople in 1204, Byzantium was fatally weakened, and its lands divided between western ("Latin") principalities and Greek Byzantine successor states. Eventually, most of these were conquered by the emerging Ottoman Empire, which in 1453 took Constantinople. The Greeks lived under Ottoman Turkish rule for around 400 years, until the revolt of 1821. The ensuing Greek War of Independence lasted until 1829, and in 1832 the Kingdom of Greece was founded.
Since then Greece has fought in many wars, among them the Greco-Turkish War of 1897, the First Balkan War, the Second Balkan War, World War I, the Greco-Turkish War of 1919-1922, World War II, the Korean War and more recently the War in Afghanistan.