UNAT considered an appeal by the Secretary-General. UNAT held that Ms. Caucci’s situation differed from the UNDT Judgment in Tran Nguyen (UNDT/2015/002) and therefore it was erroneous for the UNDT to apply such jurisprudence to find that Ms. Caucci had a general service lien with MINUSMA during and after her service with DPO. UNAT held that the rights of staff members on secondment under the Inter-Organization Agreement concerning Transfer, Secondment or Loan of Staff among the Organizations applying the United Nations Common System of Salaries and Allowance, which was at issue in Tran Nguyen...