This article introduces the concept of a “valve” state as an instrument in the study of transit migration. A “valve” state is defined as a transit state that, due to its geographical position, to a specific regional political and geopolitical configuration and to key changes in its migration control policies, can play a decisive role in significantly shaping regional transit migratory flows. The case study of the 2015 Balkan migratory wave is used to show that this phenomenon was triggered by policy changes in two “valve” states, Greece and Macedonia, that challenged the externalisation and securitisation policies of the European Union. Developments in the first part of 2016 are also taken into consideration in order to show the role of “valve” states in putting an end to the migratory wave. Critically, this was due to the creation of a new “valve” state, Turkey, as part of Brussels’ regime of influence.

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过境迁移和“阀门状态”

本文介绍了“阀门”国家的概念，作为研究过境移民的工具。“阀门”国被定义为一个过境国，由于其地理位置、特定的区域政治和地缘政治格局以及移民控制政策的关键变化，可以在显着塑造区域过境移民流动方面发挥决定性作用。2015年巴尔干移民潮的案例研究表明，这一现象是由希腊和马其顿两个“阀门”国的政策变化引发的，挑战了欧盟的外部化和证券化政策。还考虑了 2016 年上半年的发展情况，以展示“阀门”状态在结束移民潮中的作用。关键的是，