In order to ensure better coordination at Union level and in view of the particular features of the system of solidarity provided for by this Regulation, which is based on pledges made by each Member State, exercising full discretion as to the type of solidarity, in the High-Level EU Solidarity Forum (the ‘High-Level Forum’), the implementing power to establish the Annual Solidarity Pool should be conferred on the Council, acting on a proposal by the Commission. The Council implementing act establishing the Annual Solidarity Pool should identify concrete annual solidarity measures, including relocations, financial contributions and, where applicable, alternative solidarity measures, as well as their numerical scale likely to be needed for the upcoming year at Union level, while recognising that the various types of solidarity are of equal value. The Council implementing act establishing the Annual Solidarity Pool should also include the specific pledges that each Member State has made.