RUSI

The next three weeks could change western security and the geo-political world forever if the Chagos ‘deal’ passes through UK Parliament. Read the latest #RUSICommentary by @RobertMidgley07. rusi.org/explore-our-re…

So what’s @NATO ever done for the U.S.? A relevant question this week as @SecGenNATO spoke to President Trump. In short, the alliance helps America protect prosperity at home, project power abroad & gain international legitimacy. My take for @dwnews m.youtube.com/watch?v=BrfWtk…

In light of the recent reports of Russian submarine operations in waters north of the UK, make sure to watch this excerpt from a previous member exclusive webinar in which Dr Sidharth Kaushal discusses factors involved in subsea cable sabotage. RUSI Members can watch the full recording here: bit.ly/4moeBEg

'If there is less confidence that the US would come to Europe's aid in the event of future war, then that does affect deterrence of Russia and indeed others.' Watch @MTSavill's interview with @TheSun. youtube.com/watch?v=HBPGwb…

In the latest edition of Cyber Effects Perspectives, Tacita McCoy-Parkhill argues for the potential of 'Hunt Forward' operations in allied networks as a way for the UK to better integrate its defensive and offensive cyber capabilities. Such operations would allow the UK to build trust with key allies and gain useful insights into the particular environments in which the allies operate as well as adversary activity in the region by deploying UK cyber personnel to selected countries. rusi.org/explore-our-re…

Introducing the inaugural Lord Fisher Lecture, delivered by @GenGJenkinsRM, First Sea Lord and Chief of the Naval Staff, @RoyalNavy on 29 April. RUSI’s Lord Fisher Lecture honours the life and work of Admiral of the Fleet Lord John Arbuthnot ‘Jackie’ Fisher, the Royal Navy’s First Sea Lord from 1904 to 1910, and again briefly from 1914 to 1915, father of the Dreadnought battleship and renowned naval reformer, innovator and strategist. Not a RUSI Member? Join today: my.rusi.org/membership.html my.rusi.org/events/inaugur…

'Ultimately, the EU AML Package may prove to be a well-intentioned reform that arrives at the wrong moment, risking slowing innovation when Europe can least afford it' writes @redlowska in the latest #RUSICommentary. rusi.org/explore-our-re…

'For peninsula contingency planners, the implications are clear: the force that sits across from US and ROK Forces today is significantly more dangerous than the one that existed just two years ago.' writes @JohnHemmings2 in the latest #RUSICommentary. rusi.org/explore-our-re…

“Iran has learned how to keep the global economy in a hostage situation,” Petras Katinas, Research Fellow in Climate, Energy and Defence, quoted in @Telegraph.

Energy supplies remain a key driver of geopolitical volatility, despite a US–Iran ceasefire. In the latest RUSI Reflects, @DanMarks14, Research Fellow for Energy Security, explores the implications of shipping restrictions through the Strait of Hormuz, from rising prices and supply shortages to escalating geopolitical tensions. Watch the full episode: bit.ly/3PXmEvJ

In the latest episode of Talking Strategy Paul O’Neill & Beatrice Heuser are joined by Rear Admiral Archer Macy Jr to discuss today’s military, organisational, human & cultural risks & opportunities in integrating forces for air & missile defence. Listen: bit.ly/4mpYPc8

Listen to @MTSavill discuss the Iran ceasefire on @bbc5live with @NickyAACampbell. Full episode available here: bbc.in/41hBuzA

'Rutte’s meetings in Washington this week may be the toughest in his long political career. He has to ease transatlantic tensions ahead of the Ankara summit, to ensure that the flow of US arms and intelligence to Ukraine does not entirely stop and to restate why Europe remains vital to US national security.' Read the latest #RUSICommentary from @LungescuOana: bit.ly/4cu0tWC

'Federal Reserve researchers have found that companies now increasingly invest in countries ideologically aligned with their home nation – with ideological distance, measured by UN voting patterns, significantly shaping FDI allocation.' write @LSagePassant & Colin Reed in the latest #RUSICommentary. rusi.org/explore-our-re…

A few more tickets to the annual RUSI Integrated Air and Missile Defence Conference 2026 are left. Get your ticket today and join us on 21 April for a day filled with insights, including sessions like 'Deep Dive: Threats Beyond Europe, Where Next for Iran’s Missile Arsenal?' my.rusi.org/events/integra…

The US government tried to provide political risk insurance and guarantees to shipping and energy firms operating in the Gulf in an effort to keep the Hormuz Strait open. Valery Bonakhau outlines the reasons behind the scheme's failure in the latest RUSI Commentary. rusi.org/explore-our-re…

For more from @BurcuAOzcelik on the war in Iran, watch a clip from her segment on @BBCNewsnight from 1 April. For the full broadcast: bbc.co.uk/iplayer/episod…

'For parts of the elite, preserving the regime is not simply about defending an ideological project but rather about protecting access to wealth, patronage and commercial privilege.' writes @BurcuAOzcelik in the latest #RUSICommentary.rusi.org/explore-our-re…

'By the early 1990s, Iran had shifted its biological weapons research away from dedicated military sites and embedded it within civilian institutions – the Razi and Pasteur Institutes chief among them.' Read our commentary on the threat posed by the growing risk that Iran’s biological weapons capabilities could be lost, misused or accidentally released amid escalating conflict. bit.ly/4tjaGuE

What does ‘lethality’ really mean for the British Army? New research from Nick Reynolds and @Jack_Watling argues it can’t be reduced to a single number and must be understood as the sustained output of combat power in modern warfare. Lethality underpins the armed forces’ core role but treating it as a single metric risks obscuring reality. Lethality is shaped by interdependent factors, not just firepower or platform performance. Overemphasis on technology risks fragile forces. Precision, and command and control gains can’t compensate for limited stockpiles or industrial capacity; endurance is decisive in protracted, high-intensity conflict. The report proposes measuring lethality across four metrics: overmatch, potential, endurance and efficiency, capturing both battlefield performance and the ability to sustain combat over time. It calls for force design grounded in real operational needs, prioritising stockpiles, industrial capacity and targeted overmatch against likely adversaries, not abstract ‘lethality multipliers.’ rusi.org/explore-our-re…