Sir Westmacott challenges Trump rationale as war on Iran sparks 'serious' economic fallout worldwide

For Spotlight, François Picard is pleased to welcome Sir Peter Westmacott, distinguished ambassadorial fellow with the Atlantic Council's Europe Center, who was British Ambassador to Turkey, France and the United States. As a senior British diplomat with decades of experience across key transatlantic and Middle Eastern postings, he approaches the current…

Key takeaways

Quick scan — what you need to know:

• For Spotlight, François Picard is pleased to welcome Sir Peter Westmacott, distinguished ambassadorial fellow with the Atlantic Council's Europe Center, who was British Ambassador to Turkey, France…
• As a senior British diplomat with decades of experience across key transatlantic and Middle Eastern postings, he approaches the current crisis with both concern and analytical caution.
• What we are witnessing in the Middle East is not a clearly articulated strategic intervention, but rather a fluid and, at times, incoherent policy trajectory driven by shifting justifications and…
• From his perspective, the central challenge lies in the absence of a discernible core objective behind the United States’ actions.

Background

What led here, in plain terms:

• The traditional frameworks of diplomacy: alliance coordination, legal justification, and strategic clarity, appear to have been bypassed.
• This has left partners such as the United Kingdom and France in a position of reactive engagement, balancing their security dependencies with growing unease.
• Ultimately, Sir Westmacott sees this conflict not as a decisive campaign, but as an evolving and costly entanglement: one that risks escalating instability while delivering uncertain strategic gains.
• The imperative now, as he views it, is to identify a viable diplomatic “off-ramp” before the consequences deepen further for regional and global stability.

Why it matters

Why readers and decision-makers should care:

• The traditional frameworks of diplomacy: alliance coordination, legal justification, and strategic clarity, appear to have been bypassed.
• This has left partners such as the United Kingdom and France in a position of reactive engagement, balancing their security dependencies with growing unease.
• Ultimately, Sir Westmacott sees this conflict not as a decisive campaign, but as an evolving and costly entanglement: one that risks escalating instability while delivering uncertain strategic gains.