@DARPA
https://twitter.com/DARPA/status/1135885808978857984
"In 1969, the Army’s primary interest in caves and tunnels was simple: demolish them." Per @C4ISRNET, DoD now understands strategic importance of caves, tunnels & underground infrastructure and recognizes need to build tech for those spaces. https://www.c4isrnet.com/unmanned/2019/06/03/how-the-military-could-find-robots-it-needs-to-win-underground/ … #SubTChallenge
5:27 AM - 4 Jun 2019