Munitions and Explosives of Concern (MEC), including CBRN Unexploded Ordnance (UXO), pose a significant health hazard to human health and the environment. Contamination from training, violent war fighting, and emplacement activities is world-wide and estimated in millions of acres. Mitigating the physical and chemical hazards of MEC within NATO and its Partnering Countries, including areas within the Balkan Peninsula, will be extensive and cost tens of billions of dollars. Conceptual site modeling (CSM) within the environmental community has been a tool for environmental remediation specialists to help ascertain contaminant footprints, determine most likely transport and exposure pathways, identify exposed populations (human and ecological), and focus remediation/restoration efforts. These same CSM principles have been applied to UXO remediation efforts. However, recently, new tools have been developed by the United States (U.S.) Department of Defense (DoD) through the U.S. Army Corps of Engineers (U.S. ACE) to support data collection and management of MEC response at Munition Recovery Sites (MRS). Novel application of these tools, either alone or in tandem, can be used to develop advanced and strengthened CSMs. Application of these tools could play a key role in better understanding the true nature of MEC/UXO, thereby improving response efforts at MRS by NATO and Partnering Countries. This paper explores the potential application of these tools specifically in strengthening the CSM for munition response, and proposes approaches that could be potentially used to improve the public health preparedness and efficient response to CRBN MEC within the Balkan Peninsula.