Those who die in conflict for our armed services do so - whether we agree with the particular cause at that particular time or not - in our name and on our behalf. Their deaths are sacrificial.
The provision of safe water is a global challenge today and has been so throughout history, not least during periods of war. And that applies to both civilians and armed forces.
The chemistry of the First World War proved to be a double-edged sword. It not only killed, maimed, and destroyed, it also helped to protect troops and heal the sick and wounded.