Reagan sent a missile into Beirut. That was it.
There was I think a mini series on HBO or one of the cable networks Beirut. Depicts the recruitment of a Lebonese by the Iranians and how the attack on the towers, the marines were in, was planned and carried out and the killing of the US ambassador. Well scripted and acted.
Yes Reagan fired a missile but basically we turned tucked out tail and went home. That was only 1 reason to wipe out Iran since 1979.