This is a promotional add for UNICEF. This picture shows a child pointing a gun to their head, and the caption reads "Bad water kills more children than war." One can conclude that because this is a promotional ad for UNICEF, the child in the picture must be from a third world country where the water supply is very poor. When you look at this ad, it is designed to make you sympathize. Sadly when people think of children in third world countries needing clean water, they tend to brush off the issue and see it as something that doesn't pertain to/benefit them. However, when someone looks at a picture of a child with a gun pointed to their own head, they sympathize immediately and want to figure out what this ad is about. This ad play's off the notion that bad water kills more children than war, and their connection between the two is a gun. Note that in war people kill each other with guns, not themselves, but since water is the enemy and humans need water to survive (whether it be contaminated or not), the children will need to drink contaminated water to survive, therefore killing themselves.