On June 7, 1854, Schaumburg-Lippe signed the Declaration of Accession to the Convention for the Extradition of Criminals, Fugitive from Justice, of June 16, 1852 between the United States and Prussia and other states of the
German Confederation in Bückeburg. This agreement provided for the reciprocal extradition of fugitive criminals in special cases between Schaumburg-Lippe and the United States. In 1867, the principality joined the
North German Confederation and continued relations under the Confederation as a result of the
Austro-Prussian War. Relations further continued when it joined with the
German Empire in 1871, but ended with the outbreak of the First World War and the American declaration of war against Germany. ==See also==