UK Prime Minister Keir Starmer has cautioned that substantial work remains to ensure that the recently agreed ceasefire between the United States and Iran can be sustained over time.

Speaking amid ongoing diplomatic engagement, Starmer emphasised that while the ceasefire represents a positive step toward de-escalation, maintaining it will require continued coordination, monitoring, and commitment from all parties involved.

The agreement has been welcomed as an opportunity to reduce tensions in a region critical to global energy supply and security.

However, officials have indicated that ceasefires in such complex environments often face challenges, including lingering mistrust and unresolved underlying issues.

Starmer highlighted the importance of sustained diplomatic efforts, alongside practical measures to reinforce stability on the ground.

This includes working closely with international partners to support compliance and prevent incidents that could undermine the agreement.

The UK’s position reflects a broader international focus on ensuring that early progress is translated into longer-term stability.

Efforts are expected to involve both political engagement and operational coordination to address risks and build confidence.

Observers note that the durability of the ceasefire will depend on how effectively these mechanisms are implemented, particularly in the initial stages when agreements are most vulnerable.

The remarks underscore the delicate nature of the current situation, where continued engagement and vigilance will be key to preventing a return to heightened tensions.