The Office of Net Assessment (ONA) was an agency of the United States Department of Defense created in 1973 by Richard Nixon to serve as the Pentagon's "internal think tank" that "looks 20 to 30 years into the military's future, often with the assistance of outside contractors, and produces reports on the results of its research". It was abolished by Secretary of Defense Pete Hegseth in 2025. Function. According to Defense Directive 5111.11, the Director shall develop and coordinate net assessments of the standing, trends, and future prospects of U.S.
https://en.wikipedia.org/wiki/Office_of_Net_Assessment