The May 2025 India-Pakistan crisis after the Pahalgam attack has generated a familiar but incomplete debate: did nuclear deterrence work, or did it merely allow both sides to fight a limited war under the nuclear shadow? The better answer is that deterrence worked at the level at which it was designed to work. It prevented a general war and an uncontrolled vertical escalation, and kept nuclear weapons in the background. But it did not prevent India from attempting to carve out space for conventional action, nor did it prevent Pakistan from responding conventionally to restore deterrence credibility.

Three and a half years before the scheduled entry into force of the European regulation ReFuelEU Aviation (RFEUA), which requires aviation fuel suppliers at Union airports to offer a sustainable synthetic alternative (e-SAF), no sizeable commercial production unit (greater than 10,000 tons per year) is active within Europe yet, nor has it even passed the Final Investment Decision (FID). Is a major step in the European Union (EU) plans for decarbonizing air transport at risk of not happening, or at least being postponed for several years? Is Europe losing its bet to create a market for e-SAF? Under what conditions can this bet still be won? Could sovereignty and energy security preoccupations unlock necessary public support and help to overcome economic, financial, logistical or administrative obstacles?