The rhetorical device which is used here is parallelism.
What is Parallelism?
This refers to the structure of a text that is used to show the uniform arrangement of words.
Hence, we can see that from the given excerpt, there is the use of parallelism to show how the seas have been plundered, and the towns destroyed which uses the same structure.
Read more about parallelism here:
https://brainly.com/question/1878901
