Both Slovenia and Croatia are European Union members, therefore the barrier is located on an internal EU border; but currently only Slovenia is a member of the free travel Schengen Area, which Croatia is legally obliged to join in the future.
斯洛文尼亚和克罗地亚都是欧盟成员国，因此这一隔离墙是欧盟内部边界；但目前只有斯洛文尼亚是自由旅行申根区的成员，而克罗地亚在法律上有义务在未来加入申根区。