Short answers, pulled from the story.
Field Marshal Wilhelm Keitel signed the German Instrument of Surrender in Karlshorst, Berlin on the 8th of May 1945. This document marked an unconditional surrender to the Allies and ended major fighting across Europe.
Adolf Hitler committed suicide in his bunker along with Eva Braun on the 30th of April 1945. They had married less than 40 hours earlier as Soviet forces surrounded Berlin.
Operation Keelhaul began forced repatriation of displaced persons including anti-communists White Russians former Soviet POWs foreign slave workers Cossacks and Nazi collaborators to the Soviet Union. Between the 14th of August 1946 and the 9th of May 1947 up to five million people were forcibly handed over to Soviets.
Full authority of sovereign state granted to Federal Republic of Germany on the 5th of May 1955 under Bonn, Paris conventions. Treaty ending military occupation of West German territory allowed three occupying powers to retain special rights regarding West Berlin.
Up to 60,000 prisoners were at Bergen-Belsen when it was liberated on the 15th of April 1945 by the British 11th Armoured Division. Four days later troops from the American 42nd Infantry Division found Dachau.