A new investigation published by The Guardian has confirmed what human rights monitors and civil society organisations have been warning for years: the UK Ministry of Defence lacks a coherent system for tracking, assessing, and learning from civilian harm caused by British military operations.

The findings, drawn from a Ministry of Defence commissioned review released after Freedom of Information requests by Ceasefire, reveal that the UK military “does not maintain a central register of civilian harm incidents or allegations” and has allowed earlier post-Iraq and Afghanistan mechanisms to “fall into disuse”.

The report raises serious questions about Britain’s compliance with international humanitarian law obligations, particularly the requirement to take “constant care” to protect civilians during military operations. It also exposes a broader institutional culture in which the absence of mass casualty scandals involving British forces has been used to justify minimal oversight rather than meaningful transparency.

For Action on Armed Violence (AOAV), these conclusions are not new. They reinforce years of investigative work documenting the UK’s fragmented and opaque approach to civilian harm assessment, military accountability, and post-strike transparency.

A longstanding accountability gap
The Guardian report notes that the UK has no equivalent to the United States’ civilian harm assessment structures and no dedicated unit responsible for monitoring civilian casualties following British strikes.

AOAV has repeatedly documented this institutional absence.

In April 2026, AOAV reported that the Ministry of Defence had admitted it lacked a dedicated civilian harm assessment unit, despite reviewing American casualty recording practices.

Earlier this year, AOAV also highlighted a tribunal warning that the government’s secrecy surrounding civilian harm assessments risked undermining public trust in British military operations.

During Operation Shader, Britain’s contribution to the anti-Islamic State coalition in Iraq and Syria, the UK government officially acknowledged only one civilian death caused by British strikes. Yet independent investigations suggested substantially higher casualty figures.

Research cited in the Guardian, drawing on AOAV analysis, found that at least 29 civilians were likely killed in nine RAF strikes conducted between 2016 and 2018 in Iraq and Syria. Airwars, a British monitoring group, separately identified at least 26 civilian deaths in six strikes in Mosul alone.

The discrepancy between official admissions and independent monitoring illustrates a central problem in British military accountability: the state’s assessment systems remain largely closed to public scrutiny, while independent organisations continue to bear much of the burden of documenting civilian harm.

Institutional confidence without institutional scrutiny
One of the most striking aspects of the Ministry of Defence review is its assertion that civilian harm prevention is “deeply embedded” within British military targeting culture, producing institutional confidence that civilian casualties are “extremely unlikely”. Yet the same review simultaneously acknowledges the absence of a coherent framework, central oversight mechanism, or systematic casualty recording process.

This contradiction points to a wider problem in British defence culture: reliance on internal assurances rather than independently verifiable scrutiny.

AOAV’s broader work on British military justice has repeatedly identified patterns of secrecy, dispersed accountability, and resistance to external oversight.

Whether examining allegations of civilian casualties, failures in military investigations, or barriers to transparency around overseas operations, the underlying issue remains consistent: systems designed to reassure the public often operate without sufficient public visibility.

The Guardian investigation also arrives amid wider concerns about Britain’s retreat from international humanitarian law monitoring. The closure of the Foreign Office’s international humanitarian law unit, which tracked alleged abuses by other states, has also raised fears that institutional scrutiny mechanisms are being weakened rather than strengthened.

Civilian harm cannot remain politically optional
The Ministry of Defence review argues that unlike the United States or the Netherlands, Britain has not experienced a “galvanising” civilian casualty event large enough to force reform. But this logic risks treating civilian protection as reactive rather than preventative. Effective civilian harm mitigation should not depend on public scandal or catastrophic failure before systems are improved.

AOAV’s monitoring of explosive violence worldwide consistently demonstrates that civilians bear the overwhelming burden of explosive weapon use in populated areas. The organisation’s long-running Explosive Violence Monitor has shown how patterns of civilian harm emerge not only from isolated mistakes, but from structural failures in doctrine, accountability, and transparency.

Without systematic post-strike assessments, transparent investigations, and publicly accessible procedures, civilian harm risks becoming both undercounted and politically invisible.

Until Britain establishes transparent and systematic mechanisms for recording, investigating, and publicly acknowledging civilian harm, serious questions will continue to surround both the credibility of official casualty figures and the UK’s commitment to meaningful accountability in war.