<Li> January 20: Ronald Reagan inaugurated 40th President of the United States . Reagan is elected on a platform opposed to the concessions of détente . </Li> <Li> January 20: Iran hostage crisis ends . </Li> <Li> August 19: Gulf of Sidra Incident: Libyan planes attack U.S. jets in the Gulf of Sidra, which Libya has illegally annexed . Two Libyan jets are shot down; no American losses are suffered . </Li> <Li> October 27: A Soviet submarine, the U137, runs aground not far from the Swedish naval base at Karlskrona . </Li>

What are the major events of the cold war