When did war with Nazi Germany end?

On April 30, 1945, as the Battle for Berlin raged and the city was being overrun by Soviet forces, Hitler committed suicide in his underground bunker. Two days later, on May 2, 1945, German General Helmuth Weidling unconditionally surrendered Berlin to Soviet General Vasily Chuikov.

On 4 May-8 May 1945 the remaining German armed forces throughout Europe surrendered unconditionally (German Instrument of Surrender, 1945). This was the end of Nazi Germany.