VESZPREM, Hungary (June 18, 2024) Hospital Corpsman 1st Class Nathan Horning places a simulated sample on a handheld analyzer with FTIR (Fourier Transform Infrared) technology during Vigorous Warrior 2024 and Clean Care 2024. FTIR is used to assist in the determination of the chemical composition of materials. It works by measuring the absorption of infrared light and comparing the absorption pattern obtained to that of a library of absorption patterns of known substances. The purpose of analysis like this is to enable public health professionals the ability to provide a combatant commander with force health protection recommendations for those under their command in a specified area of operation. Vigorous Warrior 24 and Clean Care 24 is a NATO training exercise held biennially. It aims to enhance joint capabilities and interoperability in a simulated Article 5 scenario, which refers to Article 5 of the North Atlantic Treaty, when a NATO Ally faces an armed attack, all NATO members commit to assisting the attacked party with necessary actions, including the use of armed force. During the exercise, multinational medical assets (Vigorous Warrior) collaborate with scientific assets (Clean Care) to treat casualties and detect the use of chemical, biological, radiological, and nuclear warfare agents. This year, 32 countries participated, totaling approximately 1,200 active participants. (U.S. Navy photo by Chief Hospital Corpsman Cody Davis)