Chatham House
London think tank; challenged UK's legal framing on Iran base access, most-cited conflict source.
Last refreshed: 28 March 2026 · Appears in 2 active topics
Which think tank told London its legal cover for the Iran war doesn't hold?
Latest on Chatham House
- What did Chatham House say about the Iran war?
- Chatham House argued the UK's defensive/offensive base access distinction 'blurs the line between lawful self-defence and unlawful war on Iran,' corroborating the Attorney General's reported advice.Source: Chatham House
- What is Chatham House?
- The Royal Institute of International Affairs, founded in 1920 in London. One of the oldest and most cited international affairs think tanks, independent and non-governmental.
- Who is Sanam Vakil at Chatham House?
- Director of Chatham House's Middle East and North Africa programme. She provided early assessments of Iran's Supreme Leader succession crisis after Khamenei's death.
- Chatham House oil price forecast Iran war?
- Chatham House forecast Brent Crude reaching $130 and Eurozone contraction in Q2 2026 if the Iran conflict persists for months.Source: Chatham House
Background
Formally the Royal Institute of International Affairs, Chatham House was founded in 1920 after the Paris Peace Conference. Based at 10 St James's Square, London, it operates as an independent, non-governmental research institution and is one of the oldest and most cited international affairs think tanks in the world. Its analysts regularly brief governments and appear before parliamentary committees.
Chatham House has been the most prominent independent analytical voice in the 2026 Iran conflict, directly challenging the UK Government's legal framing of base access for US-Israeli operations. Its published analysis argued that the defensive/offensive distinction "blurs the line between lawful self-defence and unlawful war on Iran," corroborating Attorney General Hermer's reported advice. Analyst Sanam Vakil provided early assessments of Iran's succession crisis.
Beyond the legal debate, Chatham House has shaped the economic narrative: its forecasts projected Brent Crude at $130 and Eurozone contraction in Q2 if the conflict persists, analyses cited alongside Goldman Sachs and IEA assessments across Lowdown's coverage. The institution's combination of legal, strategic and economic analysis makes it the most frequently cited source in the Iran conflict reporting.