感情脆弱 发表于 2025-3-23 10:58:12
https://doi.org/10.1007/978-3-662-08398-7entified challenges, ., in the areas of crime prevention, law enforcement and criminal justice, migration, crisis and intervention management, inter-agency and international cooperation and the exchange of relevant information in the period of 2014 to 2017.大量杀死 发表于 2025-3-23 17:43:37
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Systematisches Vorgehen am Notfallort,State borders define a national territory. Sovereign nationhood is also defined in relation to the understanding of a modern and secure state, whether a state is able to effectively control crossings of its borders, and also being able to oversee and manage it.充气女 发表于 2025-3-24 04:27:17
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https://doi.org/10.1007/978-3-031-22330-3In 2018, the common external borders of the 28 EU MS measure around 13,500 km of land borders and 66,000 km (41,000 ml) of coastlines. The area of ‘air borders’ could, where appropriate, be categorised by the number of international airports in all EU MS combined with all international inbound and outbound flights of the EU MS.