– Providing substantial support within means and capabilities to CSDP operations (e.g. EUFOR) and missions (e.g. EU Training Missions) - with personnel, materiel, training, exercise support, infrastructure or otherwise - which have been unanimously decided by the Council, without prejudice to any decision on contributions to CSDP operations and without prejudice to any constitutional constraints, – Substantially contributing to EU BG by confirmation of contributions in principle at least four years in advance, with a stand-by period in line with the EU BG concept, obligation to carry out EU BG exercises for the EU BG force package (framework nation) and/or to participate in these exercises (all EU Member States participating in EU BG). – Simplifying and standardizing cross border military transport in Europe for enabling rapid deployment of military materiel and personnel. 13. With regard to interoperability of forces, the participating Member States are committed to: – Developing the interoperability of their forces by: – Commitment to agree on common evaluation and validation criteria for the EU BG force package aligned with NATO standards while maintaining national certification. – Commitment to agree on common technical and operational standards of forces acknowledging that they need to ensure interoperability with NATO. 14866/17 ANNEX JU/jk DGC 1C 4 EN