For 10 points, name this European country formerly led by Adolf Hitler.
One leader of this country forcibly annexed the Sudetenland ("soo-DAY-ten-land"). During a movement to reunite this country, the leader of one half operated under the policy of ostpolitik ("OST-pol- it-ick"). Following World War I, the Weimar ("VIE-mar") Republic was established in this nation. It was united after an 1871 war and led by Kaiser Wilhelm I and chancellor Otto von Bismarck. For 10 points, name this European country formerly led by Adolf Hitler.
One leader of this country forcibly annexed the Sudetenland ("soo-DAY-ten-land").
Federal Republic of {Germany} [or {Bundesrepublik Deutschland}]