The Anglo-Irish Treaty of 1921 divided Ireland into two regions, the Irish Free State, given Commonwealth status and Northern Ireland which stayed part of the UK. Fiona Allison. The Anglo-Irish Treaty brought little peace to Ireland after its implementation: the Irish Free State plunged into civil war.
The Strategic Defense Initiative (SDI), also known as Star Wars, was a program first initiated on March 23, 1983 under President Ronald Reagan. The intent of this program was to develop a sophisticated anti-ballistic missile system in order to prevent missile attacks from other countries, specifically the Soviet Union.