First Lt. Marie McCreary, platoon leader, 289th Quartermaster Company QM, 553D Combat Sustainment Support Battalion, 1st Cavalry Division Sustainment Brigade holds a cup of unpurified water and a cup of purified water after it has been processed using the Tactical Water Purification System (TWPS) during a validation exercise March 22. (Photo by SFC LaSonya Morales, 1st Cavalry Division Sustainment Brigade)

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Keywords: 1st, 553d, brigade, cavalry, cbrne, clean, cssb, defense, division, dogs, purification, soldiers, sustainment, training, water