I see thousand of photo everyday and mostly in social media.
I think photos could cross the mind more easier and quick than reading and processing a long post that may take few minute.
I like photo taken in War field , it can show a lighter side such us a child's smile even if the darkness is everywhere.
There is a lot of famous War photos that describes great Victory moments inherited over generations .
Countries that suffered a long time from War and its painful consequences did not have many alternatives to tell the world how much the war is cruel and harmful .
A photo is as powerful as can gather the worl about a noble cause.