The U.S. commander of the 1980 Operation Bright Star in Egypt rewarded his troops for a job well done with a night on the town prior to redeployment. Wherever the U.S. military travels, there are no guarantees that there will be a safe water supply available. There are many examples of water sources which could be extremely hazardous if not properly treated. Hepatitis A. Giardiasis. Most Army vehicles and generators.
Refill canteens at every opportunity.
If the threat from biting insects is high, leave pants bloused in boots. Dark yellow urine means insufficient fluid intake. Avoid spilling fuel on skin or clothing. Avoid tight-fitting clothing. When insect threat is high, blouse your pants in your boots and completely lace your boots and tuck your undershirt in at the waist.