An analyst at the European Commission is working on a confidential report about a humanitarian crisis that requires urgent coordination between the EU Delegation in a third country, the Office of the European Union Special Representative, and the defense ministries of three Member States. The analyst must transfer large files containing sensitive personal data of conflict victims to a cloud computing platform hosted outside the EU, ensuring that the flow of information complies with the security and data protection principles of the GDPR and maintains the operational coherence of the European External Action Service (EEAS). Which of the following actions is the MOST appropriate to ensure data security and continuity of EU international operations in this specific scenario?