Question

Why does the poet describe the riders as entering into the valley of death?

Answer 1

Answer:

The order is repeated. The speaker really wants us to focus on those words, on the command to move forward. The men are being sent to their doom.

Again, we don't know who's giving the orders here, but this disembodied voice might make us pause and think about why these brave men are being sent into "the valley of Death."

Answer 2

Explanation:

The poet cells it, the valley of death, since they would be killed on this mission, which was the result of miscommunication of an order from a British officer. two similar expressions are, into the mouth of hell and the jaws of death