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Defending the Heartland: Cyber Tatanka strengthens shield over vital infrastructure [Image 7 of 8]

Dvidshub • June 22, 2026

U.S. Air National Guard Brig. Gen. Robert Hargens, Nebraska Air National Guard assistant adjutant general, stands watch as civilian and military participants work through defensive cyberspace scenarios during Exercise Cyber Tatanka 2026 in Lincoln, Neb., June 11, 2026. The exercise utilized isolated cloud-based cyber ranges hosted by Cloud Cyber Range to simulate realistic enterprise networks in an unclassified space. (U.S. Army National Guard photo by Staff Sgt. Gauret Stearns)

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Defending the Heartland: Cyber Tatanka strengthens shield over vital infrastructure

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Cyber Tatanka 2026 Enhances Cyber Defense for Critical Infrastructure Exercise Cyber Tatanka 2026 took place in Lincoln, Nebraska, from June 9 to June 11, 2026, involving U.S. military and international partners, including the Czech Republic. The exercise featured cloud-based cyber ranges to simulate realistic network scenarios, enhancing defenses for vital infrastructure. Participants included civilian and military personnel working collaboratively to address potential cyber threats. The event aimed to strengthen the cybersecurity posture of the U.S. and its allies against evolving cyber threats. The exercise was unclassified, allowing for broader participation and knowledge sharing among nations. Specific attack vectors or vulnerabilities were not detailed in the articles, focusing instead on the collaborative defense efforts. 2 sources 24

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Cyber Tatanka 2026