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|Born||October 8, 1899|
Odessa, Russian Empire
|Died||January 22, 1973 (aged 73)|
|Allegiance|| UK (British Army)|
Israel (Haganah and later Israel Defense Forces)
|Years of service||1917–1949|
|Rank||Rav Aluf (highest rank)|
|Commands held||Chief of Staff of the Hagana|
IDF Chief of Staff
|Battles/wars||World War I|
1948 Arab-Israeli War
Born in the present day Ukraine (then part of the Russian Empire) as Yakov Dostrovsky (Russian: Яков Достровский), son of Tzvi and Myriam, his family emigrated to Ottoman Palestine following the anti-Jewish pogrom in Odessa in 1905. Upon completing high school at the Hebrew Reali School in Haifa, he enlisted in the Jewish Legion of the British Army during World War I. Following the war he studied engineering at the University of Ghent. When he returned to Palestine in 1926 he joined the Haganah and adopted the underground name of "Dan". In Haganah he was the commander of the Haganah Forces of Haifa.
In 1939, Dori was appointed Chief of Staff of the Haganah, a position he held until 1946. As CoS Haganah it was Yaakov Dori's duty to take the Haganah from a diffuse self-defense organisation to a model army. From 1946 to 1947 he also headed the Palestinian Jewish delegation sent to purchase arms in the United States.
When the IDF was formed, Dori took over as its first Chief of Staff. Yet, despite his good command and organizational skills, he was already suffering from failing health and had difficulty commanding his troops during Israel's War of Independence, so he was forced to rely heavily on his deputy, Yigael Yadin. He completed his term as Chief of Staff on November 9, 1949 and retired from the military. He was succeeded by his deputy, Yadin. Even after his release from the army, however, he continued to wear the officer's pin he was awarded when he first became a second lieutenant.
Upon leaving the IDF, Dori was appointed chairman of the nation's Science Council, attached to the Prime Minister's office. He was later appointed president of the Technion in Haifa, a position he held until 1965.
His son, Yerachmiel Dori, served as commander of the IDF's Engineering Corps. His daughter, Etana Padan, is a biochemist and a professor of microbial ecology at the Hebrew University of Jerusalem. His youngest son, Zvi Dori, was a Chemistry Professor at the Technion and the founder of the first Israeli Science Museum (Technoda). Israel Dostrovsky, physical chemistry and former President of the Weizmann Institute of Science, was his first cousin.
Media related to Yaakov Dori at Wikimedia Commons