Dr. Magdy Kamel ElHewary Writes : From Hostility to Understanding: Four Stages of the Iranian-American Agreement That Could Reshape the Middle East .

For more than four decades, relations between the United States and Iran have fluctuated between escalation and de-escalation, sanctions and secret diplomatic messages. Today, discussions have once again intensified about a new agreement that could become one of the most significant developments in the history of relations between the two