What is the Schengen zone?

Which other Schengen countries have border checks in place?

Schengen Zone: Are border controls making a comeback?

European borders: Restrictions remain in Schengen zone

Explained: What are Schengen visas and what benefits do they offer for travellers?

Germany's border controls 'the new norm'? Is border-free Schengen Area area 'a thing of the past'?

Flying into Croatia just got easier: Air border controls dropped for Schengen zone countries

Schengen: 1985 pact under increasing strain

Could Germany's new border controls end up getting revoked by Brussels?

Brussels unveils plans to reform borderless Schengen Area

Deportations of refugees and migrants from Greece to Turkey begin calmly

Romania and Bulgaria become fully fledged members of the Schengen area as land border checks lifted

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