Shield AI has completed its acquisition of Aechelon Technology, adding a specialist in realistic training environments and sensor modeling to its defense autonomy portfolio.

The transaction follows the completion of a $2 billion strategic financing package that valued Shield AI at $12.7 billion post-money, including $1.5 billion raised through a Series G funding round and $500 million in preferred equity.

Shield AI said Aechelon specializes in high-fidelity simulation technology, physics-based sensor modeling, and synthetic reality software.

"The future of warfare will be defined by humans and autonomous systems operating and fighting together as a networked team," said Gary Steele, CEO of Shield AI.

"Simulation creates the path to prepare for that future at scale, and today, every action, by human and machine, must be tested and validated in simulation and fed back into a continuous, closed data loop. By bringing Aechelon in-house, we can connect simulation, autonomy, and deployment into that cycle and deliver more capable manned-unmanned teaming to our customers and to the warfighters and allies who depend on them, faster than ever before."