In Olympus, the second armatoliki was founded, led by Kara Michalis in 1489. The action of the klephts in Olympus led the Turks to visit their outrage on the klephts' ally-village of Milia (in the late 17th century), which they destroyed. In that period Livadi in Olympus became the seat of the armatoliki of Olympus and Western Macedonia, with their first renowned commander Panos Zidros. In the 18th century the Turks had to replace the armatoloi (who very often joined the klephts) with Moslem Albanian armatoloi who ravaged the countryside of Macedonia. However, Olympus' armatoloi, even after their capitulation to Ali Pasha, never ceased fighting on land and at sea. Among them who were active there and in nearby regions were Nikotsaras, Giorgakis Olympios and the legendary family of Lazaioi. In the early 20th century, even for some time after the liberation from the Ottoman Empire (1912), robbers were active in the region - the best known of them the notorious Giagoulas, while during the German invasion in 1941 the Greek army fought significant battles along with units of New Zealanders and Australians. During the German Occupation (1941-1944) the mountain was one of the centers of the Greek Resistance, while a little later the Greek Civil War (1946-49) started there, in Litochoro.