MI6 Tops European Intelligence Ranking: Peer Review Reveals Power 2026

MI6 has been ranked as the most powerful foreign intelligence service in Europe, according to a peer review that highlights its dominance in espionage and strategic operations. The British agency scored 251 points, outpacing France's DGSE and other European counterparts, cementing its reputation as a global intelligence leader.

How MI6 Outperformed European Rivals

The peer review, conducted by French magazine L'Express, involved 60 professionals from 25 countries who rated intelligence services across western-allied nations. MI6's expertise in recruiting high-level informants and penetrating ruling elites in Russia, China, Iran, and Turkey was particularly commended.

France's General Directorate for External Security (DGSE) finished second with 169 points, praised for its global reach and operational capability. The Netherlands, Ukraine, and Germany rounded out the top five, while Slovakia's service was rated the worst.

Key Factors Behind MI6's Success

Former CIA officials and European intelligence experts attribute MI6's success to its long-term strategic approach. Ralph Goff, a former CIA chief of operations for Europe and Eurasia, noted, "The British are in the lead on the Ukrainian file. We are right behind them." Robert Gorelick, a former CIA station chief, added, "The United Kingdom has by far the strongest secret services in Europe. MI6 is extraordinary."

MI6's ability to play the long game, investing in sources over a 10-year horizon, mirrors Russian tactics but with a distinct Western advantage. This approach has proven critical in early warnings about the Russian invasion of Ukraine in 2022, where Britain was the first to alert Kyiv.

Comparative Intelligence Ratings

Leadership and Legacy

Last year, Blaise Metreweli became the first woman to lead MI6, taking over from Sir Richard Moore. This historic appointment signals a new era for the agency, which continues to adapt to evolving global threats.

The DGSE, depicted in the French series The Bureau, was rated as one of the world's best in counter-terrorism. Its clandestine operations, including at least 40 assassination orders by former President François Hollande, underscore the high-stakes nature of intelligence work.

Key Takeaways

• MI6 leads Europe in foreign intelligence capabilities with a score of 251 points.
• France's DGSE is a close second, excelling in counter-terrorism and global operations.
• British intelligence excels in long-term source recruitment and elite penetration.
• MI6's early warning on Russia's invasion of Ukraine solidified its reputation.
• Leadership changes, including the first female chief, signal modernization.

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