((a)) ** Exceptions from repayment requirement** A member bank shall not be required to repay any deposit made at a foreign branch of the bank if the branch cannot repay the deposit due to—

((1)) an act of war, insurrection, or civil strife; or

((2)) an action by a foreign government or instrumentality (whether de jure or de facto) in the country in which the branch is located;

((b)) ** Regulations** The Board and the Comptroller of the Currency may jointly prescribe such regulations as they deem necessary to implement this section.