Of course the July 20th bomb plot had nothing to do with the plight of the Jews being systemically slaughtered in the Holocaust. The plot was lead after all by German military officers gravely concerned about the disastrous collapse of the fronts in both the East and the West. The Final Solution to the Jewish question was a largely a secretive operation carried out by the SS without the common knowlege of the general population and even the Allies were unaware of its scope until the concentration camps were liberated.
That said, there was significant opposition to the regime among the highest levels of the German military high command and the aristocracy. Among the high ranking German officers implicated in the plots against Hitler were the legendary Desert Fox himself, Field Marshall Erwin Rommel, Field Marshalls von Witzenblen and Gunter von Kluge, Admiral Wilhelm Canaris head of the German intelligence service, the Abwehr, and General Ludwig Beck among many other brave German citizens who opposed the Third Reich.
Some would say that they acted strictly out of self interest and only when it was apparent that the war was lost. To me, it is proof that not all Germans were automotons and mindless sycophants screaming Heil Hitler! at the top of their lungs in stiff arm salute. There were actually brave individuals who did think for themselves and had the bravery to act upon it. The plots ended up costing most of these men their lives and many died a slow torturous death at the end of piano wires in executions filmed to delight the sadistict thrills of the Fuehrer.
This was a very good reply to many of the replies in this thread.
I had a Political Science teacher in college who went into great detail explaining how the NSDAP was able to manipulate many factors in the times and German culture to rise to power.
After working with many allied soldiers for 20 years, I know how different other nations are from America. It must always be remembered that Germany was not a united nation until 1870, and that Germans had lived in monarchies for hundreds of years.
Valkyrie was a good movie, but it did leave out a lot of context, for the sake of a manageability. These were serious men who struggled with their decision.