Conversation so far:
when did the charge of the light brigade happen?
The Charge of the Light Brigade took place during a battle near the city of Balaclava on October 25, 1854.
was The Charge of the Light Brigade successful?
The result was disastrous.
what was the result of The Charge of the Light Brigade?
An estimated 278 of the Light Brigade were killed or wounded.

Question: what was the cause?
Self-contained rewrite: what was the cause of the disastrous result of The Charge of the Light Brigade?