Select The Defense Industrial Base of the 16 Critical Infrastructure sectors. See https://www.cisa.gov/critical-infrastructure-sectors. Look at the Sector-Specific Plan for CI Sector. You may look at any other information in addition to the Sector-Specific Plan if that assist you in proving the required information.
You may check chapters 16-19 of the attached book.
Identify effective countermeasures. Please include page numbers in every in-text citation.