PGI 225.371-2 Definitions.
“Designated operational areas” include, but are not limited to, such descriptors as theater of war, theater of operations, joint operations area, amphibious objective area, joint special operations area, and area of operations. See DoD Joint Publication 3-0, Joint Operations, Chapter IV, Paragraph 2, “Understanding the Operational Environment,” at http://www.dtic.mil/doctrine/new_pubs/jp3_0.pdf.