The late President of the United Arab Emirates, Ruler of the Emirate of Abu Dhabi. He passed away on May 13, 2022. Sheikh Khalifa bin Zayed Al Nahyan ruled as a member of the Supreme Council of the Federation and the presidency of the Supreme Petroleum Council . He accompanied the career of his father, Sheikh Zayed bin Sultan Al Nahyan, may God have mercy on him, in all its stages. The first official position he held was the Ruler’s Representative in the Eastern Region and Chief of the Courts there, on September 18, 1966. He was appointed Crown Prince of the Emirate of Abu Dhabi on February 1 ( (February) in 1969, as head of the “Defense Department.” He assumed, ex officio, the leadership of the emirate’s defense force, and played a fundamental role in developing it and transforming it from a small guard force into a multi-tasking force, equipped with modern equipment. He assumed the presidency of the first “local council of ministers” for the Emirate of Abu Dhabi, in addition to holding the portfolios of defense and finance in this council on July 1, 1971, and after the declaration of the federal state, he held, in addition to his local responsibilities, the position of deputy prime minister of the “cabinet” in the government. Federal, which was formed in December 1973. After the abolition of the “Local Council of Ministers,” he became the first president of the “Executive Council,” which replaced the emirate’s “Council of Ministers” in all its powers in February 1974, and in addition to His responsibilities at the head of the Executive Council. In 1976, he established and headed the Abu Dhabi Investment Authority, and assumed the position of Deputy Supreme Commander of the Armed Forces in the Federal Government. He paid increasing attention to the Armed Forces, which witnessed during that period a major boom in terms of equipment, training, and the ability to absorb... Modern technologies and advanced methods, which he was keen to provide to all sectors of these forces. Among the most prominent development initiatives presented by the “Department of Social Services and Commercial Buildings,” which was known among the people as the “Sheikh Khalifa Committee.” The activities of this department were translated and helped in the flourishing of the urban renaissance in the Emirate of Abu Dhabi, and it launched the first strategic plan for the government of the United Arab Emirates. And an initiative to develop the experience of the legislative authority, to modify the method of selecting members of the Federal National Council. After the death of his father, Sheikh Zayed bin Sultan Al Nahyan, the Supreme Council of the Federation elected him as President of the United Arab Emirates on November 3, 2004. Sheikh Khalifa bin Zayed Al Nahyan was born in the city of Al Ain in 1948. He received his basic education in the city of Al Ain.