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Constrictive Bronchiolitis (CB) has been reported in US Operation Iraqi Freedom/Enduring Freedom (OIF/OEF) deployers but not in those from prior US conflicts. A 62-year old presented with progressive dyspnea 13 years after deployment to the Persian Gulf in 1991-1992, where he was exposed to burning oil well fire emissions, dust storms, and other potential airborne hazards. In 2014, after a chest computed tomography (CT) scan demonstrated diffuse mosaic attenuation, he underwent surgical lung biopsy, which revealed CB. Deployers from both GWI and OIF/OEF share many exposures. As respiratory symptoms are a feature associated with Gulf War medically unexplained illness, there may be a role for renewed interest in evaluating GWI Veterans with unexplained respiratory symptoms for conditions such as CB, which may result from exposures relevant to deployers from both conflicts.