system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] Why did the Rohirrim announce their position at Pelennor Fields?

(In the movie at least) Yes it is one of the best scenes but... wouldn't have the cavalry charge been much more effective if they swooped in with a bit more of an element of surprise? The beautiful horn and speech are lovely and all but it allowed the Orcs to reform their lines and steel themselves a bit.
gpt
Surprise wasn't really an option. It's hard to hide the sound of six thousand horses and their pissed-off riders. You're gonna be making tons of noise no matter what you do, so it may as well be organized and intimidating.

It also served to let Minas Tirith know that help had arrived.