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Coordinates: Hardthöhe is a district at the western edge of Bonn, Germany. The headquarters of the Federal Ministry of Defense is located in Hardthöhe since 1960. Hardthöhe was not part of Bonn before 1969. Instead, it belonged to the Amt Duisdorf. In 1969, Hardthöhe, together with Duisdorf and Lengsdorf, were assigned to the municipal district of Hardtberg, Bonn.