She was surrendering. After the Czechs yielded, the Nazis inspected their fortifications. A test bombardment showed that our weapons would not have prevailed against them. Even the usually arrogant Hitler was impressed and admitted that taking them through battle would have been very difficult. The position is quite clear, resistance would be folly.
History is more than sounds.
It is also scenes to be viewed and analyzed. The temperature is -40 F, and freezing to death is a common phenomenon. A closer look reveals that 1,200,000 of these people are Poles. Only the remaining one-fifth are Jews. Somehow I have never heard the question asked.