Ten British nationals who served in the Israeli military are at the centre of a formal war crimes complaint being submitted to Scotland Yard, amid growing concerns over UK citizens' complicity in atrocities during Israel’s ongoing war on Gaza. The 240-page dossier, prepared by leading human rights lawyers and researchers, accuses the individuals of committing war crimes—including the deliberate targeting of civilians, hospitals, aid workers, and religious sites.

The complaint, led by renowned barrister Michael Mansfield KC and a coalition of legal experts, will be presented to the war crimes unit of the Metropolitan Police. Citing international legal obligations, Mansfield underscored Britain’s duty to act when its own citizens are implicated in crimes against humanity abroad. “Even if we cannot stop foreign governments, we can ensure our own people are held accountable,” he said.

The legal team has compiled extensive evidence from eyewitness accounts, open-source data, and documented attacks that occurred between October 2023 and May 2024. Though the names of the accused—some reportedly holding dual nationality and high-ranking positions—have not been disclosed for legal reasons, the dossier presents what the legal team describes as “credible and compelling” proof of direct involvement in war crimes.

Sean Summerfield of Doughty Street Chambers, one of the contributing lawyers, noted: “The public will be shocked to learn that British nationals may have played a direct role in some of the most egregious atrocities in Gaza.” He added that the aim is justice—for the victims and for the integrity of international law.

Under the International Criminal Court Act 2001, the UK is legally bound to investigate and prosecute British citizens involved in genocide, war crimes, or crimes against humanity, regardless of where the crimes were committed. The submission of this complaint marks a significant step in confronting the role of foreign nationals in Israel’s actions in Gaza, and challenges Britain’s silence on the matter.