U.S. Air Force Senior Airman Joshua Skroch, 52nd Logistics Readiness Squadron petroleum, oil, and lubricants journeyman, collects a sample of JP-8 fuel for testing at Spangdahlem Air Base, Germany, Oct. 29, 2019. Fuel samples are collected to test for any traces of water or additives. (U.S. Air Force photo by Airman 1st Class Alison Stewart)