It depends on the country Hitler was demanding surrender from.
The "Final Solution"
This article details what happened to hitlers body- it isn't long. http://wiki.benecke.com/index.php?title=2003_AIR:_Hitler%C2%B4s_Skull_%26_Teeth
24 days ,Japan surrendered on May 2nd
The Bay of Pigs invasion lasted three days. Then the invading forces surrendered.
It depends on the country Hitler was demanding surrender from.
one week
2 months 8 days
D-Day was June 6, 1944. Adolf Hitler committed suicide on April 30, 1945, more than 10 months after D-Day.
Britain declared war on Germany after Hitlers Army entered Poland on the 3rd September 1939. Hostility's ended May 8th 1945.
In 1940, Germany launched its attack on Western Europe. It was a massive invasion that swept over the lowlands including Belgium. Not long after the fall of Belgium, France was then successfully invaded and surrendered.
We entered December 7th 1941 when we were bombed at Pearl Harbor. Germany and Italy fell first. Japan finally surrendered on August 15 1945, ending WWII. The War was waging in Europe from September 1st 1939, when Hitler invaded Poland, before we got directly involved. Germany surrendered on May 8th 1945.
The determination of the USSR, and France, and Britain and U.S. They all caved into Germany and surrounded forces. The remaining german soldiers gave up and surrendered. This was prior to the suicide of Hitler and in his will he said no one should take over his power when he dies. So, nazi soldiers pretty much knew the end was near when all of this occured, The third reich collapsed also
allies Allies Italy surrendered in 1944. Both Japan & Germany surrendered unconditionally in 1945. There is a school of thought that Allied demands for German Unconditional Surrender prolonged the war, but as long as Hitler remained alive the Germans were held to their oath of allegiance to him......
He was leader of Germany from 1934 until his death.
The "Final Solution"
To the death or until one combatant surrendered. But remember, they did not always fight to the death, more times than not a gladiator would get a "misio" which could be likened to a pass. He'd get off with his life, but would not get paid for his combat for that day.