Because there is no peace between them and not enough land and resources.
Islam and Judaism
I have not gotten into any conflicts in the Middle East and therefore there are no results to be had. If the question is asking about the results of the United States' involvement in Middle Eastern conflicts, please see the Related Question below.
Almost all political systems in the Middle East have caused conflicts with the exception of liberal democracies (such as those in Israel or Turkey). However, the governments of both of those countries have fought in international conflicts.
Being where the armistices to the Conflicts are drafted.
The UK has always been deeply involved with Middle East conflicts right back to the Crusades. Americans are newcomers at this.
Judiasm, Christianity, and Islam have the most adherents in the Middle East and therefore their adherents are embroiled in the largest number of conflicts.
No. There are minimal gold deposits in the Middle East. The reason that there are perpetual conflicts in the Middle East is the unwillingness of different people with different ideologies to compromise to create a more harmonious society. People would rather be right (correct) than be at peace.
Conflicts between the Arabs and Israelis go back to biblical times. They have influenced the history of North Africa and the Middle East by having a constant state of conflict and unrest.
It would take a whole book to explain all that
Religion played a very negative role in the middle east. It was the main source of conflicts since Christians and Muslims despised each other.
Yes it is possible the Korean conflicts could cause a world war, but so could the conflicts in the Middle East and any conflicts with the Chinese that may arise. It is more probable a world war would be fought over the Middle East which has the most oil being sold world wide. The world is dependent on that source of oil.
Iran hostage crisis