Airman 1st Class Joseph Kamunyu, 446th Civil Engineer Squadron heavy equipment maintainer, out of Joint Base Lewis-McChord, Wash., fortifies an area for potable water at Fort McCoy, Wis., during Patriot Warrior, June 10, 2015. Patriot Warrior is the Air Force Reserve Command portion of a much larger joint expeditionary exercise involving almost 6,000 Sailors, Soldiers, Airmen, and multinational forces. Formerly known as Global Medic, the exercise still focuses primarily on aeromedical evacuation training and readiness, but has evolved over time to become much more multi-faceted. Securing a source of potable drinking water was one of the primary concerns and responsibilities of the 446th CES upon arrival. (U.S. Air Force photo by Senior Airman Daniel Liddicoet/Released