Here's a thought: the next time you picture a military advantage, don't just think of a faster jet or a smarter missile. Think of an algorithm. Artificial intelligence is rapidly becoming the central technology on the modern battlefield, and that shift is putting a new spotlight on exchange-traded funds that sit at the crossroads of defense and tech.

The conversation got a fresh jolt recently from Palantir Technologies Inc. (PLTR) CEO Alex Karp. In a chat with CNBC, Karp argued that AI is providing the U.S. and its allies a strategic edge, specifically pointing to the escalating tensions with Iran. It's not just talk; he pointed to a real Pentagon program called Project Maven as the prime example.

So, what's Project Maven? It's the U.S. Department of Defense's AI-powered surveillance tech. It uses machine learning to sift through satellite imagery and battlefield intel to identify potential targets. And it's reportedly gotten an upgrade: sources say it has now integrated AI models from the firm Anthropic, including its Claude chatbot technology, into some defense tools. The message is clear: the conflict with Iran is a stark reminder that warfare isn't just about physical hardware anymore.

Your Grandfather's Defense ETF This Is Not

This evolution is quietly changing what it means to invest in defense. Funds like the iShares U.S. Aerospace & Defense ETF (ITA) and the SPDR S&P Aerospace & Defense ETF (XAR) have long been the go-to for exposure to companies that build fighter jets and missiles. But the story is expanding.

Newer strategies, like the Global X Defense Tech ETF (SHLD), are built differently. They focus more directly on the emerging tech side of national security: think autonomous systems, cybersecurity, and yes, artificial intelligence.

And it's not just niche defense funds. Some broader tech ETFs are getting in on the action by holding companies that develop the data analytics platforms and advanced software defense agencies crave. The ARK Autonomous Technology & Robotics ETF (ARKQ) and the Global X Artificial Intelligence & Technology ETF (AIQ) are two examples that offer this kind of tangential exposure.

The market seems to be buying the narrative, at least for a pure-play like Palantir. Its stock is up almost 15% this month, a notable move while the tech-heavy Nasdaq Composite has declined 2%.

The New Arms Race Runs on Code

Industry watchers are starting to talk about the next great geopolitical competition not in terms of nuclear stockpiles, but in AI capabilities. The logic is straightforward: these platforms can chew through mountains of data—satellite feeds, communications intercepts, you name it—and help militaries spot threats and coordinate responses faster than any human team ever could.

The nature of the conflict itself shows how the battlefield has changed. Karp noted that Iran has recently targeted data centers owned by Amazon.com Inc. (AMZN) and has threatened to hit Nvidia Corp. (NVDA), Alphabet, Inc. (GOOGL), Palantir, and Oracle Corp. (ORCL). When your adversary is threatening your cloud infrastructure and AI chip suppliers, you're not in a traditional war anymore. You're in a software war.

The takeaway for investors? As global tensions simmer and governments inevitably ramp up spending, the money might flow differently. Analysts suggest that ETFs focusing on defense innovation and AI infrastructure could be where the action is. The future of defense investing might be less about who builds the best tank and more about who writes the best code.