Europe's Rearmament Won't End Nuclear Fears - Here's Why

Jan de Vries · 2026-07-22

The debate around Europe's rush to rearm is heating up, and it's stirring some deep anxieties. Andrew Horn recently argued that while building up military strength can boost deterrence, it doesn't touch the real root of nuclear fears. That's a powerful point, and it's worth unpacking because it gets at something we often overlook in these conversations. We tend to think that more weapons equals more safety. But history and psychology tell a different story. The Cold War was a standoff between two massive nuclear arsenals, and it didn't exactly make anyone feel secure. In fact, it fueled a constant sense of dread. The same dynamic is playing out today as Europe boosts its defenses. ### The Limits of Deterrence Deterrence works on paper. The idea is that if you have a big enough stick, no one will dare challenge you. But it's a fragile system. It relies on everyone acting rationally, and that's not always how things go. Miscalculations, miscommunications, and plain old human error can turn a tense situation into a catastrophe. - Deterrence doesn't address why countries feel threatened in the first place. - It can escalate tensions rather than calm them. - It creates an arms race where everyone keeps building more. Horn's argument hits on this: rearmament might make Europe look stronger, but it doesn't solve the underlying issues like political instability, historical grievances, or resource conflicts. Those are the real drivers of nuclear fear. ### What's Really Driving the Fear? People aren't scared of nuclear war just because of the bombs themselves. They're scared because of the uncertainty. When you see nations rattling sabers and building up forces, it feels like anything could happen. That anxiety is rooted in a lack of trust and a sense that things are spinning out of control. Europe's rush to rearm is a reaction to threats, but it's also a symptom of a deeper problem. There's no real dialogue happening about how to reduce tensions or build lasting peace. Instead, we're seeing a return to old-school power politics, which never ended well. ### A Better Path Forward So, what can we do? It's not about giving up defense entirely. That would be naive. But we need to pair military strength with genuine diplomacy. That means talking to adversaries, not just arming against them. It means investing in conflict resolution and economic cooperation, not just tanks and missiles. Horn's piece is a reminder that security isn't just about firepower. It's about stability, trust, and shared interests. Until we address those deeper causes, the fear of nuclear war will linger, no matter how many weapons we stockpile. The conversation needs to shift from "how do we win?" to "how do we prevent?" That's the hard work, but it's the only path that leads to real safety.