Gibraltar

So what?  A settled, treaty-based Gibraltar-Spain arrangement removes a standing friction point for the roughly 15,000 daily cross-border workers — more than half of Gibraltar's workforce — and gives European counterpart agencies a template for resolving other post-Brexit UK-EU border anomalies, an opening worth flagging for any liaison relationship touching EU external-border policy. Watch how the new joint checks perform under peak summer travel volume as an early signal of whether the arrangement holds up operationally, not just diplomatically.