Explain the following statement with reference to the context.
From now on The Herald shall be my artillery.
This line refers to the following dialogue:
"I shall consider the "People‘s Messenger" my sheet-anchor now."
It is said by Dr. Stockmann in his conversation with Billing, Hovstad, and Aslaksen. The dialogue conveys the extent of the doctor‘s trust in them. He genuinely believes that in his fight for the truth, he will always have their support and that they will help him use the newspaper as a weapon in his effort to expose the social evils of society. Thus, he calls the newspaper his 'sheet-anchor‘.