A Diplomatic Ultimatum: What This Means for International Law

A recent open letter signed by 102 former French and British diplomats is a stern rebuke of Israeli policy in occupied Palestinian territory, urging their countries to jointly sanction Israel over its continued expansion into the West Bank. The signatories include high-ranking officials like Jeremy Greenstock and Emyr Jones Parry, who have witnessed firsthand the consequences of inaction.

This is not merely a call for Palestinian rights; it’s also a warning that Israel’s actions threaten the very fabric of global governance. Historically, the UK and France have been entangled in the region’s affairs, dating back to their respective mandates over Palestine after World War I. Their current recognition of a Palestinian state acknowledges their responsibility for the region’s modern-day predicament.

The diplomats are demanding that France and the UK suspend trade agreements with Israel, halt arms transfers, and ban citizens from purchasing property on occupied Palestinian land. These measures aim not only to punish Israel but also to demonstrate an alternative to violence. The signatories eschew partisan rhetoric, instead employing a measured, fact-based approach.

The language in the letter is deliberate, borrowing from international legal bodies like the UN to convey the severity of Israel’s actions and the imperative for collective action. Nicholas Hopton notes that the words used are “not our own” but borrowed from established sources, underscoring the gravity of the situation and the depth of expertise on which this letter is based.

The signatories are speaking as witnesses to history, not as ideological advocates. Despite their credentials, they’re being pilloried by some for “taking sides.” However, Hopton’s words should be heeded: the diplomats’ language is meant to convey the severity of Israel’s actions and the need for collective action.

The growing disquiet among Western allies over Israel’s policies is evident in this letter. It arrives amidst escalating violence in Gaza, which has claimed the lives of over 72,000 Palestinians since October 2023. Despite a ceasefire that took effect in October 2025, Israeli attacks have continued, killing at least 1,285 Palestinians.

As Hopton notes, the real test lies with governments willing to act rather than simply condemn. The US, with its outsized influence over Israel’s actions, is the most consequential actor here – and its inaction will only perpetuate a cycle of violence that will be harder to break later on.

This letter is also a warning to international institutions about their complicity in this crisis. As Hopton cautions, “continued inaction will create a longer-term, irreconcilable problem and store up future violence and future tragedies.” The diplomats are saying that the time for platitudes is over – it’s time for action.

The consequences of inaction should not be underestimated. If international law continues to be flouted with impunity, we risk unraveling the very fabric of global governance. It’s a bleak prospect, but one that these 102 diplomats are refusing to ignore. As they urge their governments to take concrete steps towards holding Israel accountable, they’re also sending a message to all who would watch: this is not just about Palestine or Israel; it’s about our collective responsibility as custodians of international law.

The world will be watching – and waiting – for France, the UK, and other signatory countries to follow through on their commitments. Will they heed the call? Or will we witness another instance of diplomatic posturing that ultimately fails to deliver real change? Only time will tell.