Water should be consumed before, during, and after the march. Drink small quantities of water rather than gulping or rapid intake. Drink water even when not thirsty. Drink water slowly to prevent cramps or nausea. Avoid spilling water.
Refill canteens at every opportunity.
The human body does not operate efficiently without adequate liquid intake. When soldiers are engaged in strenuous activities, excessive amounts of water and electrolytes are lost through perspiration. More water is lost through normal body functions such as respiration and urination, which can create a liquid imbalance in the body. As a result, dehydration could occur unless this loss is immediately replaced and soldiers rest before continuing their activities. Deficient liquid and salt intake during hot weather can also result in heat injuries.