Russian cavalry, refugee trains, German cavalry and infantry. 1914

The transcript describes the initial success of the Russian offensive during World War I, likening it to a steamroller as it overwhelms eastern Prussia. German refugees flee the advancing Russian columns. However, the offensive halts unexpectedly, and the Russian general commits suicide. Meanwhile, the French army faces encirclement, reminiscent of the situation at Sudan. The narrative concludes with the French government leaving Paris on September 3rd, 1914, as the threat of capture looms.

What do the horsemen hope to see that night?

What is the date mentioned in the text regarding the situation in Paris?