Put this sentence in a active voice "The Enhanced Combat Helmet ("ECH") is that the development and fielding of the ECH faced significant challenges due to safety concerns raised by operational testers and the Army Surgeon General, despite the helmet meeting its performance requirements after a joint development effort with the Marine Corps. The decision to field the helmet involved balancing the warfighters' needs and the safety concerns of the testing and medical communities. The case study highlights the complexities involved in defense acquisition, particularly when it comes to personal protective equipment like the ECH. The helmet was developed to provide enhanced protection for soldiers, but during testing, concerns were raised about its safety, specifically regarding the risk of backface deformation. This put the project manager in a difficult position, needing to navigate between the demands of the warfighters who wanted the helmet fielded and the recommendations of the operational testers and medical experts who had safety concerns