European territorial cooperation has brought Europeans closer together, strengthened connectivity and improved the natural environment, supported by EU mechanisms such as the European groupings of territorial cooperation, and macro-regional strategies. Yet despite these achievements, numerous obstacles to closer cooperation still remain, such as divergent national rules in the areas of employment, healthcare and social security.
https://www.europarl.europa.eu/thinktank/en/document.html?reference=EPRS_BRI(2020)659340
https://youtu.be/qxGml8XKEeE
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