The United Kingdom government has successfully negotiated a post-Brexit agreement concerning Gibraltar, addressing a significant unresolved matter stemming from its departure from the European Union. Foreign Secretary David Lammy engaged in discussions with ministers in the British overseas territory before finalizing the deal with the EU and Spain in Brussels. This new accord is designed to resolve the "last major unresolved issue from Brexit" and crucially "avoids the need" for checks on individuals and goods crossing the Gibraltar-Spain border, aiming to foster "prosperity in the region."

The border between Gibraltar and Spain is a vital conduit, with approximately 15,000 people, constituting over half of Gibraltar's workforce, crossing it daily. The UK government hopes this agreement will also facilitate other post-Brexit discussions as it seeks to improve its relationship with the European bloc. The deal is seen as a practical solution to years of uncertainty that threatened Gibraltar's economy and way of life.

Under the terms of the agreement, dual border control checks will be implemented for arrivals. At Gibraltar airport, these checks will be conducted by both Gibraltarian and Spanish officials. Similar dual checks will apply to arrivals by sea at the port. While Spanish officials will be responsible for ensuring the integrity of the Schengen Area, the model is described by the government as being similar to the arrangement where French police operate in London's St Pancras station. However, immigration and law and order within Gibraltar will remain the exclusive responsibility of Gibraltar's authorities.

A bespoke agreement was necessary due to Spain's long-standing claim to Gibraltar, which came under UK control in the early 18th century. Successive UK governments, both Conservative and Labour, have consistently maintained that they will not cede sovereignty of the territory to Spain. The newly brokered deal explicitly states that the treaty will not affect sovereignty. Furthermore, it ensures that the UK retains full operational autonomy for its military facilities located in Gibraltar.

Foreign Secretary David Lammy described the breakthrough as delivering a "practical solution after years of uncertainty," emphasizing that it "protects British sovereignty, supports Gibraltar's economy and allows businesses to plan for the long-term once again." He also thanked the Chief Minister of Gibraltar, Fabian Picardo, and his government for their dedication. Mr. Picardo expressed his delight with the deal, stating he was looking "towards a time of renewed cooperation and understanding." The EU, in a statement, expressed confidence that the agreement "will support prosperity and bring confidence, legal certainty, and stability to the lives and well-being of the people of the whole region."

Despite the positive reception from the involved parties, there are potential concerns. As noted by Sky News deputy political editor Sam Coates, some Eurosceptics may express dissatisfaction with the presence of European border guards operating on what is considered British territory.