One thing: He never did anything about the Marines lost in the Beirut barracks bombing. By his own words, it tends to have just drifted off his radar.
Not that it matters but the Beirut bombing occurred at the same time we invaded Grenada.
Reagan kept us there in Beirut for a while, but he realized a few months later it wasn't going to work. In the end, the Soviet Union crumbled and that's what mattered most for that era.