How do these lines of "The Battle of Dorking" catch a reader's attention?

The British author raised concerns over the state of the army with the genre of invasion which touched the readers.

Explanation:

The Battle of Dorking was written by George Tomkyns Chesney in 1871 just after the France and Prussian War in which Prussia came out victorious. The novel reflects the ideas of the nineteenth century England and concern for the reforms in the Britsh military and Royal Navy. It portrayed the invasion of England by German-speaking people which reflects the immediate concern to prepare for war against the dominating Prussian army.

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