February 2023 Feature Article

An Exploratory Comparison of Water-Tamped and -Untamped Explosive Breaches: Practical Applications for the Tactical Community via a Pilot Study

Winter 2022

Kamimori GH, McQuiggan W, Ramos AN, LaValle CR, Misistia A, Salib J, Egnoto MJ. 22(4). 56 - 59. (Journal Article)

Abstract

Background: Tamping explosive charges used by breachers is an increasingly common technique. The ability to increase the directional effectiveness of the charge used, combined with the potential to reduce experienced overpressure on breachers, makes tamping a desirable tool not only from an efficacy standpoint for breachers but also from a safety standpoint for operational personnel. The long-term consequences of blast exposure are an open question and may be associated with temporary performance deficits and negative health symptomatology. Purpose: This work evaluates breaches of varying charge weight, material breached, and tamping device used to determine the value of tamping during various scenarios by measuring actual breaches conducted during military and law enforcement training for efficacy and blast overpressure on Operators. Methods: Three data collections across 18 charges of various construction were evaluated with blast overpressure sensors at various distances and locations where breachers would be located, to assess explosive forces on human personnel engaged in breaching activities. Results and Conclusions: Findings indicate that water tamping in general is a benefit on moderate and heavy charges but offers less benefit at a low charge with regard to mitigating blast overpressure on breachers. Reduced overpressure allows Operators to stage closer to explosives and lowers the potential for compromised reaction time. It also reduces the likelihood of negative consequences that can result from excessive overpressure exposure and allow Operators to "do more with less" in complex environments, where resource access may be limited by logistic or other limitations. However, tamping in all instances improved blast efficacy in creating successful breaches. Future studies are planned to investigate tamping mediums beyond water and environment changes, whether tamping can be used to mitigate acoustic insult, and other explosive types.

Keywords: breachers; blast; overpressure; tamping; water tamp

Integrating Military and Civilian Trauma Systems to Achieve Zero Preventable Deaths after Injury

Advances in trauma care have accelerated over the past decade, spurred by the significant burden of injury from the wars in Afghanistan and Iraq. Between 2005 and 2013, the case fatality rate for United States Servicemembers injured in Afghanistan decreased by nearly 50 percent, despite an increase in the severity of injury among U.S. troops during the same period of time. But as the war in Afghanistan ends, knowledge and advances in trauma care developed by the Department of Defense (DoD) over the past decade from experiences in Afghanistan and Iraq may be lost. This would have implications for the quality of trauma care both within the DoD and in the civilian setting, where adoption of military advances in trauma care has become increasingly common and necessary to improve the response to multiple civilian casualty events.

This report documents the remarkable decrease in casualties killed in action during the wars in Iraq and Afghanistan and the role of the Joint Trauma System, the CoTCCC, and the TCCC Working Group in helping to make that happen. It also outlines a clear and comprehensive vision for a National Trauma System that will enable the civilian and the military sectors to work in concert to help prevent ALL potentially preventable deaths in trauma victims.

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Robert M. Miller
North American Rescue
Chief Innovation Officer

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Stephen M. Apatow
President, Humanitarian Resource Institute
(UN:NGO:DESA) and H-II OPSEC: Defense Support:
Humanitarian and Security Operations

"Military units that have trained all of their members in Tactical Combat Casualty Care have documented the lowest incidence of preventable deaths among their casualties in the history of modern warfare - and JSOM is the first journal to publish every new change in TCCC."

Frank K. Butler, MD
Chairman, Committee on Tactical
Combat Casualty Care (CoTCCC)

"The past 30 years has brought an amazing professionalization of the specialty of Tactical Emergency Medical Support (TEMS). As new standards are set and the world faces increasingly complex security challenges, it is critical that the front line medical providers supporting military, intelligence, and law enforcement operations have a mechanism to expand their knowledge and share best practices. The Journal of Special Operations Medicine offers civilian readers access to the most cutting edge developments in the field including updates on Tactical Emergency Casualty Care (TECC), the National TEMS Imitative and Council (NTIC), and combat lessons learned. JSOM is the one-stop shop for best practice and future advancements in civilian TEMS. One of the unifying principles across humanitarian, expedition and disaster response medical operations is the ability to make complex decisions in uncertain environments. The Journal of Special Operations Medicine is one of the most unique platforms for experts to convey lessons learned and relevant scientific advances across specialties that historically have little interaction. Whether you work for Doctors Without Borders, a DMAT, or provide medical support for expeditions in austere environments, Journal of Special Operations Medicine is your journal."

David W. Callaway, MD
Director, Division of Operational and Disaster Medicine
Operational Medical Director, Carolinas MED-1
Co-Chairman, The Committee for Tactical Emergency Casualty Care (C-TECC)
Civilian Vice President, Special Operations Medical Association (SOMA)