; or (B) was awarded a campaign medal in recognition of service in any of the following— (i) Operation Enduring Freedom; (ii) Operation Iraqi Freedom; (iii) Operation Nomad Shadow; (iv) Operation New Dawn; (v) Operation Inherent Resolve; (vi) Operation Freedom’s Sentinel; (vii) Operation Odyssey Lightning; or (viii) Operation Pacific Eagle. (4) A military operation described in this paragraph is any of the following: (A) A contingency operation (as defined in section 101(a)(13) of title 10). (B) A military operation in any of the following countries or territories: (i) Afghanistan. (ii) Bahrain. (iii) Burkina Faso. (iv) Cameroon. (v) Chad. (vi) Diego Garcia. (vii) Djibouti. (viii) Egypt. (ix) Ethiopia. (x) Gabon. (xi) Ghana. (xii) Iraq. (xiii) Jordan. (xiv) Kenya. (xv) Kuwait. (xvi) Kyrgyzstan. (xvii) Libya. (xviii) Mali. (xix) Niger. (xx) Nigeria. (xxi) Oman. (xxii) Pakistan. (xxiii) Philippines. (xxiv) Saudi Arabia. (xxv) Somalia. (xxvi) South Sudan. (xxvii) Sudan. (xxviii) Syria. (xxix) Tajikistan. (xxx) Tunisia. (xxxi) United Arab Emirates. (xxxii) Uzbekistan. (xxxiii) Yemen. (b) Process To add diseases through written petition (1) In the case that the Secretary receives a written petition from an interested party to add a disease to the list of diseases specified in subsection (a)(2), not later than 90 days after the date of receipt of such petition, the Secretary shall request a determination by the National Academies of Sciences, Engineering, and Medicine (referred to in this section as the National Academies ) with respect to whether there is a positive association between— (A) the exposure of humans to one or more covered toxins, including emissions from open burn pits; and (B) the occurrence of the disease in humans. (2) For purposes of this subsection, the term interested party includes a representative of— (A) a congressionally chartered veterans service organization