Trump has promised to end the war in Ukraine. Whether or not he succeeds, the defense tech industry will benefit either way. It’s already happening: Venture investment in defense start-ups soared last year, and by September had surpassed the total amount invested in 2023. Palantir, a data analytics company, was a star performer. Its market capitalization jumped almost fivefold to $180 billion in 2024, its operating margins have risen sharply and it joined the S&P 500 in September.

Others are also profiting from rising global uncertainty. Anduril Industries, a California-based defense start-up backed by Peter Thiel, the venture capitalist and Palantir co-founder, announced in August that it had raised $1.5 billion in a funding round that valued it at $14 billion. And Helsing, a German start-up that uses A.I. to process live data from the battlefield, is one of Europe’s best-funded companies.

If Trump does manage to end the war, it’s plausible that Western defense companies will find opportunities helping to build Ukraine’s military capability. If he doesn’t, more of their tech may be deployed on the ground there. Smaller, A.I.-powered companies are already testing their equipment in real time in a war where drones and other tech are playing a big role.