UK sets 2026 foreign policy plan at Mansion House

If you’ve wondered why a narrow waterway in the Gulf can nudge your weekly shop and airline prices, tonight’s Mansion House speech was aimed at you. The Foreign Secretary set out how the UK plans to handle a world where conflicts ripple into our bills and our classrooms.

Earlier this week, a ceasefire agreement involving the United States, Israel and Iran was announced. Ministers welcomed it as a first step toward safer shipping and calmer energy markets, while warning there is hard work ahead to stabilise the region and bring costs down for households in the UK.

In the early hours of 28 February, when strikes on Iran began, the Government chose not to join offensive action. The Prime Minister, Keir Starmer, backed a cautious course: ask for a lawful basis, a clear plan, and a serious check on the risks of escalation. The message was that UK choices should follow UK interests and values, not pressure from allies or opponents.

Britain did provide defensive support to Gulf partners who were under threat. RAF crews flew to protect states that were not party to the conflict and where large British communities live and travel. At home, ministers paired that stance with short‑term help on energy bills and a continued freeze in fuel duty to steady family budgets.

The priority now is to restore freedom of navigation and fully reopen the Strait of Hormuz. Key term: freedom of navigation is the principle in maritime law that ships should move through international waters without obstruction. For the UK, this is not abstract-around 95% of our trade moves by sea and roughly 40% of our food is imported.

Britain convened more than 40 countries to back that principle and met the International Maritime Organization in London to discuss immediate steps. What it means: the first practical goal is to move stranded vessels and help some 20,000 seafarers who have been stuck by the fighting. That is a humanitarian lift as well as an economic one.

Ministers also warned that a lasting regional settlement must include Lebanon. The escalation of Israeli airstrikes there was described as deeply damaging, with civilians displaced and lives lost. Without progress on the Lebanon front, the UK argues, durable security for Israelis and Palestinians will remain out of reach.

The UK says Iran must stop threatening shipping and neighbours, and it cannot be allowed to develop a nuclear weapon. The stated aim is to move from open conflict to containment-restricting rearmament and the flow of weapons through coordinated diplomacy and enforcement-so British people, partners and trade are safer.

Alongside the ceasefire push, the Government highlights a Gaza truce and a 20‑point plan, action against annexation threats and settler violence in the West Bank, and a credible path to a two‑state solution. Key term: a two‑state solution means an independent Palestine alongside Israel, with both living securely.

The speech placed these choices in a pattern you will recognise: the pandemic, Russia’s invasion of Ukraine, and now the Iran crisis have each sent economic waves across borders. The lesson drawn is that national security and economic security now move together, and the UK must plan for turbulence rather than hope for calm.

Ministers argued that past assumptions-benign security, smooth globalisation, reliable partnerships-did not hold. Cuts hollowed out parts of defence, supply chains left us exposed, and the energy transition stalled. The promise now is to adapt faster and rebuild resilience with fewer blind spots.

On defence, the Government sets a course for the biggest increase in defence spending since the end of the Cold War, and a headline goal to spend 5% of GDP on national security by 2035. The UK recommits to NATO, ongoing support for Ukraine, protection of Gulf allies, and modern tools to counter hybrid threats such as cyber attacks and disinformation. Key term: hybrid threats blend military, digital and economic pressure to unsettle a state.

Economic resilience runs alongside this. The plan includes support for tech, research and finance, a steel strategy aiming for half of steel used in the UK to be UK‑made, and work with allies on critical minerals. On energy, ministers point to new nuclear and faster renewables, noting that wind and solar are not held up by chokepoints like the Strait of Hormuz.

Values are framed as a strength, not a luxury. The UK pledges extra humanitarian support for displaced people in Lebanon and backing for energy infrastructure in Ukraine. It defends international law and the UN Charter while arguing that frameworks should keep pace with migration and security pressures. The pitch is that being a dependable, law‑abiding partner brings investment and safety.

Diplomacy is the delivery system. London is seeking a new treaty with Germany, deeper nuclear cooperation with France, stronger migration work with Italy, tightened naval coordination with Norway, and a closer relationship with the EU on security and trade. The transatlantic bond remains central, with room to disagree when interests differ.

The UK also leans on flexible groups: the Joint Expeditionary Force for deterrence in Northern Europe, the Calais group on migration, the E3 and E4 formats for European coordination, the Coalition of the Willing for Ukraine’s support, and efforts with the US and the Quad countries to secure a ceasefire in Sudan-the worst humanitarian crisis of the 21st century. Key term: the Quad usually refers to the US, India, Japan and Australia working on Indo‑Pacific security.

For classrooms and common rooms, the takeaways are practical. Watch how shipping routes link directly to your cost of living, how NATO commitments shape budgets, and how energy choices reduce exposure to overseas shocks. As the Foreign Secretary put it, the alliances we build abroad are meant to make us steadier at home.