Quotas and thresholds would be functional to trigger the interventions of "mandatory solidarity" by other States. The principle - diplomatic sources underline - is still "the subject of discussion" at the negotiating tables.

A draft mediation proposed by the Swedish Presidency clearly indicates that it is necessary to "further refine the balance between solidarity and responsibility" In any case, the text excludes that relocations will ever be made'mandatory', although they are included among the solidarity measures together with "financial contributions" and unspecified "other interventions"