 Complete the following phrase:  At its inception in 1997, the Chancellery took its offices in the neoclassical former Cadet Corps building along Ujazdów Avenue in central Warsaw. Built between 1900 and 1903 under Russian-controlled Congress Poland, the building originally provided the home to the Alexander Suvorov Cadet Corps of the Imperial Russian Army. At the outbreak of the First World War, the Cadet Corps building was transformed into a municipal hospital, and following the Russian retreat, a German Army hospital. Shortly following Poland regained its independence on 11 November 1918, troops from the Polish Infantry Academy in Ostrów Mazowiecka negotiated the withdrawal of German troops and medical patients out of the Cadet Corps building in return for safe passage out of the new republic. The building quickly came under the administration of the new Polish Armys Infantry Academy. During the 