U.S. Secretary of Defense Pete Hegseth (L) is briefed on an exhibit of Multi-Domain Autonomous systems by Alexander Lovett (L), Deputy Assistant Secretary of Defense Prototyping and Experimentation and Emil Michael (R), Under Secretary of Defense (Research & Engineering, at the Pentagon July 16, 2025 in Arlington, Virginia. Michael just announced a new "War Force" initiative.

Win McNamee / Getty

By Patrick Tucker

Science & Technology Editor

June 30, 2026 10:04 AM ET