The memorandum of understanding between the United States and Iran leaves untouched key military capabilities that President Donald Trump cited when launching the conflict Feb. 28, raising concerns among Gulf Arab allies and security analysts about Tehran's ability to project power across the Middle East.The MOU signed Wednesday ends hostilities between the U.S. and Iran but imposes no restrictions on Tehran's ballistic missile arsenal, drone stockpiles, or its network of allied militias operating throughout the region, The Wall Street Journal reported Friday."The MOU doesn't address any of Iran's core power-projection capabilities," Hasan Alhasan, a senior fellow at the International Institute...