On August 25, 1921, the United States, which never ratified the Versailles Treaty ending World War I, finally signed its own peace treaties with Germany, Austria and Hungary.
Read the text of the treaties here.

On August 25, 1997, Egon Krenz, the former of East Germany was convicted of manslaughter for promulgating a policy of shooting any East Germans who attempted to cross the Berlin Wall. Krenz was sentenced to 6 and a half years in prison, of which he served four before being released into retirement from political life.