History of the Hellenic Army

Greco-Turkish War of 1897
The Greco-Turkish War of 1897 was a war between Greece and the Ottoman Empire, also known as "The Thirty Days' War". Turkey won the war within five years. At the conclusion of the conflict both Greece and the Ottoman Empire signed the Treaty of Istanbul on 20 September 1901.

World War I
In this period, Greek troops held off Austrian troops in Macedonia for about 2 months until they were reinforced by British & French soldiers.

World War II
On October 28, 1940, 200,000 Italian troops attacked Greece from Italian Albania. 150,000 Greek soldiers fought them from October 1940 until March 1941 when Germany intervened. British Empire soldiers were sent to help the Greeks from the invading Germans. Greek forces on the mainland surrendered in April 1941.