John Spencer
@johnspencerwarscholar·3.2K subscribers·310 videos
Subterra 101 with Traysar Industries
Posted
July 3, 2026
Views
40
Likes
6
Engagement
15.00%
July 3, 2026
40
6
15.00%
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3:02:16Now PlayingJohn Spencer, Executive Director of the Urban Warfare Institute and founding member of the International Working Group on Subterranean Warfare sits down with Asher Katz, CEO and co-founder of Traysar Industries and a former member of the Israel Defense Forces' elite Yahalom unit and Greg Johnson, Principal Engineer at Traysar Industries to discuss all things "subterra" domain.
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