Lech Walesa, born in 1943, founded in Poland the labor union called <em>Solidarity</em>, which was the first union to be independent from the communist party in the whole Soviet Union. Moreover, Walesa won the Nobel Peace Prize in 1983 and subsequently became the Polish president between 1990 and 1995.
<em>Solidarity</em> emerged as a social movement, which used civil resistance and disobedience to fight for workers' rights and for social change. The communist authorities established martial law, aiming to destroy the union. After some years of repression, the goverment had to negotiate with Solidarity. <u>The many talks that took place led to the celebration of semi-free elections in 1989 and Walesa was elected president. </u>
The primary aim of NATO was to unify and reinforce the military reaction of the Western Allies to a potential occupation of western Europe by the Soviet Union and its allies in the Warsaw Pact.
It's the 38th parallel line of latitude that separates communist north Korea and the U.S backed republic of Korea. This line is situated at the 38 degrees towards north from the earth equatorial line and is the example of geometric boundary in which borders are closed and a very small movement is allowed across it. Prior to the korean war, this line serves as a border between the north Korea and the south Korea.