When investors hear the words “reusable rocket,” they typically think of Elon Musk, Mars colonization and the commercial space economy. Firefly Aerospace Inc. (NASDAQ:FLY) wants them to think about missile defense.

The company is developing its reusable Eclipse rocket in partnership with Northrop Grumman Corp (NYSE:NOC), and CEO Jason Kim says the vehicle was designed from the outset for “national-security missions”—a strategy that could position Firefly to capitalize on growing defense spending and emerging programs like President Donald Trump‘s proposed Golden Dome missile shield.

A Different Reusable Rocket Story

SpaceX helped transform the economics of spaceflight by proving reusable rockets could dramatically lower launch costs. But while much of the industry’s attention remains focused on commercial launches, satellite broadband and long-term ambitions beyond Earth, Firefly sees a growing opportunity much closer to home.

“We’re proud to partner with Northrop Grumman to co-develop our reusable Eclipse rocket,” Kim told Benzinga in an exclusive email interview.