What evidence in the text supports this theme in chapter 10 mariposas

Why does henry david thoreau think imprisonment is ineffective?

Which best identifies the figurative language used in this passage? cannon to right of them, cannon to left of them, cannon in front of them volley’d and thunder’d; storm’d at with shot and shell, boldly they rode and well, into the jaws of death, into the mouth of hell rode the six hundred.

Brendan is playing in the backyard.