Concerns over the fragility of the Gaza ceasefire continue to grow – at the heart of it, a complex battlefield with unique challenges.

The sophisticated Hamas terror tunnel network in Gaza has reshaped military operations, with battles below often more important than the battles above.

(Hamas tunnel shaft located on the grounds of the Shifa Hospital, Photo Credit: IDF.)

One of the leading experts on this type of conflict is Major John "W" Spencer, executive director of the Urban Warfare Institute. The award-winning scholar and military analyst served for more than 25 years in the U.S. Army, including deployments to Iraq and leadership roles in elite units like the 75th Ranger Regiment, the U.S. Army's special operations force.

Spencer's research focuses on conflict in dense urban areas

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