may waive the limitation under subsection (a) if, upon advice of the relevant military commanders, the Secretary determines that the waiver is necessary due to an imminent and extraordinary threat to members of the United States Armed Forces in the AFRICOM AOR. (d) Form The report described in subsection (b) shall be submitted in unclassified form, but may contain a classified annex. (e) Definitions In this section: (1) The term “appropriate congressional committees” means— (A) the congressional defense committees (which has the meaning given the term in section 101(a)(16) of title 10, United States Code)