; and (B) to support a major near-peer conflict such as is outlined in war game scenarios included in the 2018 National Defense Strategy. (3) An assessment of the extent to which substitutes for such materials are available. 6422. Expansion of eligibility for residence at the Armed Force Retirement Home Section 1422, and the amendments made by that section, shall have no force or effect. LXV Authorization of Additional Appropriations for Overseas Contingency Operations A General Provisions 6501. Review of Joint Improvised-Threat Defeat Organization research relating to humanitarian demining efforts (a) In general Not later than 180 days after the date of the enactment of this Act, the Secretary of Defense shall conduct a review of the research of the Joint Improvised-Threat Defeat Organization to identify information that may be released to United States humanitarian demining organizations for the purpose of improving the efficiency and effectiveness of humanitarian demining efforts. (b) Report to Congress The Secretary shall submit a report to the congressional defense committees detailing the research identified under subsection (a). B Inspectors General Matters 6511. Establishment of lead Inspector General for an overseas contingency operation based on Secretary of Defense notification (a) Notification on commencement of OCO Section 113 of title 10, United States Code, is amended by adding at the end the following new subsection: (n) Notification of certain overseas contingency operations for purposes of Inspector General Act of 1978 The Secretary of Defense shall provide the Chair of the Council of Inspectors General on Integrity and Efficiency written notification of the commencement or designation of a military operation as an overseas contingency operation upon the earlier of— (1) a determination by the Secretary that the overseas contingency operation is expected to exceed 60 days