; or (C) operational best practices, planning, and supplier partnerships that enable enhanced resilience of supply chains during a supply chain shock, including response, repair, recovery, reconstruction, insurance, or continuity. (19) Supply chain shock The term supply chain shock includes the following: (A) A natural disaster or extreme weather event. (B) An accidental or human-caused event. (C) An economic disruption. (D) A pandemic. (E) A biological threat. (F) A cyberattack. (G) A great power conflict. (H) A terrorist or geopolitical attack. (I) Any other supply chain disruption or threat that affects the national security or economic security of the United States. (20) Tribal government The term Tribal government means Indian Tribes, Alaska Native Tribal entities, and Native Hawaiian communities. (21) Under Secretary The term Under Secretary means the Under Secretary of the Office of Supply Chain Resiliency and Crisis Response appointed pursuant to subsection (d). (b) Establishment Not later than 180 days after the date of enactment of this Act, the Secretary shall establish a Supply Chain Resiliency and Crisis Response Office to carry out the activities described in subsection (e). (c) Mission The mission of the Office shall be the following: (1) Help to promote the leadership of the United States with respect to critical industries and supply chains that— (A) strengthen the national security of the United States; and (B) have a significant effect on the economic security of the United States. (2) Encourage partnerships and collaboration with the Federal Government and the private sector, labor organizations, the governments of countries that are allies or key international partners of the United States, State governments and political subdivisions of a State, and Tribal governments in order to— (A) promote the resilience of supply chains; and (B) respond to supply chain shocks to— (i) critical industries