Please check back often as this is regularly updated. 1  Rim Exit Devices. 2  Rim Device: This type is used on single doors or pairs of doors that have a vertical mullion (either removable or fixed) in between the doors. The strike plate is surface mounted on the frame (or mullion).
Mikhail Gorbachev was the last General Secretary of the Soviet Union. He brought about massive economic, social, and political changes and helped bring an end to both the Soviet Union and the Cold War.
In 1980, Ronald Reagan became president of the USA. As a strong anti-communist, he called the Soviet Union the evil empire and increased spending on arms. The US military developed the neutron bomb, cruise missiles and a Star Wars defence system using space satellites. By 1985, the Soviet Union was in trouble. In 1985, Mikhail Gorbachev became leader of the USSR. 1  He withdrew from Afghanistan. 2  He realised that the USSR could not afford the arms race, and opened the START (Strategic Arms Reduction Talks) with the USA. 3  He began to reform the Soviet system by allowing perestroika (competition in business) and glasnost (freedom).