The global diplomatic order is undergoing its most profound transformation since 1945. The shift from patient, protocol-driven diplomacy to a transactional model — defined by speed, explicit conditionality and the prioritisation of immediate gain — has occurred with a velocity that no training system anticipated and no foreign ministry was prepared for. Drawing on two centuries of diplomatic history and on testimony from senior practitioners including Canadian Ambassador Kirsten Hillman and UK Foreign Secretary David Lammy, this Atlas News policy brief identifies three structural risks and formulates three concrete recommendations for diplomatic training institutions, foreign ministries and international relations think-tanks. Not an indictment of the diplomatic profession — a mirror held up with respect.