Deputy Crown Prince Mohammed bin Salman bin Abdulaziz, Second Deputy Prime Minister and Minister of Defense, received today US Defense Secretary James Mattis. During the meeting, they discussed bilateral relations. The two sides also discussed the challenges facing the region, especially the hostile practices of the Iranian regime and its role in destabilizing the security and stability in the region, joint efforts in combating terrorist organizations such as ISIS and Al-Qaeda, as well as joint efforts to maintain the security and stability of the region in general.