Thanks to President Obama for visiting Hiroshima and thereby calling attention to the increasing horror of warfare. The President has an important message which much of the media seems to be missing, that in the future humanity must avoid not only nuclear war but all warfare.
It is past time for the world's leaders to see that the development of any kind of weapons is not the cause of war but rather the effect of leaders expecting wars and wanting to win them rather than lose them. Wars are a disease of our human society, and the desire to make ever more destructive weapons is a symptom of that disease.
Some people think that we must always have wars because there will always be conflicts, but that is a mistake. Not all conflicts are wars. Humans engage in warfare when they do not rely on a better way to deal with conflicts.
In fact, we humans have developed a peaceful way of resolving conflicts, even intense conflicts between groups with opposing interests. It is called democratic government, and we are seeing it at work right in our election taking place this November. Different groups have different views about what policies the government of our community should follow. A few even want to continue to use violence to deal with these conflicts, but fortunately most are committed to having elections according to agreed-upon rules. Then the winning majority make laws which are in effect until the next election. Courts are established to determine how the laws apply to particular cases. We will have a very contentious election, but there will not be a war.
The United States of America is not the only country that has demonstrated the value of democracy, that is, of resolving conflicts by political and judicial means along with regular elections. Democracy promotes bit-by-bit progress over a long period of time.