Master Sgt. Joseph Tabor, 163rd Medical Group bio-environmental engineer, compares a water sample to a pH and chlorine indicator in Cataño, Puerto Rico, during Innovative Readiness Training Ola de Esperanza Sanadora Sept. 1, 2018. The purpose of the IRT is to provide medical, dental and optometry care to assist local municipal authorities in addressing underserved community health and civic needs while performing joint military humanitarian operations.

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Keywords: air, america, archive, armed, army, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa