In December 2011, the Netherlands was the only one still opposing Bulgaria and Romania's admission into the Schengen zone, which requires the unanimous approval of all members.
U prosincu 2011. godine, Nozozemska je bila jedina zemlja koja se i dalje protivila prijamu Bugarske i Rumunjske u Schengensku zonu, što zahtijeva jednoglasni pristanak svih članova.