Russia has been expanding its intelligence sharing and military cooperation with Iran, providing satellite imagery and improved drone technology to aid Tehran’s targeting of U.S. forces in the region, people familiar with the matter said. Russia is trying to keep its closest Middle Eastern partner in the fight against U.S. and Israeli military might and prolong a war that is benefiting Russia militarily and economically. The technology provided includes components of modified Shahed drones, which are meant to improve communication, navigation and targeting, the people said. Russia has also been drawing on its experience using drones in Ukraine, offering tactical...