Lecture entitled "The Economic System in Islam and a Course in Solving Economic Problems" at the Royal Jordanian National Defense College Dr. Ahmed Al-Oran delivered a lecture on Thursday at the Royal Jordanian National Defense College entitled "The Economic System in Islam and a Course in Solving Economic Problems" for learners in the 18th Defense Course, in the presence of the commander, chairman and directing staff of the college. At the end of the lecture, there was an extensive discussion during which the guest answered the questions and inquiries of the scholars.