Czechs in Ukraine Mostly, they were women with ethnic Ukrainian husbands. Some others stayed of their own choice. During the Soviet era, they were one of the most affected groups by the Chernobyl nuclear power plant disaster in 1986. At the end of the 1980s, ten thousand Czechs lived in Ukraine. At the beginning of the 90s Czechoslovakia invited these remaining Czechs to return to the Czech Republic, which in 1993 almost 2,000 people did, and other people came to the Czech Republic in later years. As of today, Volhynian Czechs are still migrating. In 2014, after the revolution in Ukraine and the
Science and Technology Center in Ukraine and the United States. In 1997, the original treaty was amended to include the European Union supplanting Sweden's membership in the organization. <br> 1993-1997<br> 1997 onward<br> <br> <br> <br> Science and Technology Center in Ukraine The Science and Technology Center in Ukraine commonly known as the STCU, is an intergovernmental organization dedicated to the non-proliferation of nuclear, biological and chemical weaponry and related technologies. It was established in 1993, through an international multilateral treaty to help scientists and researches involved in the research, development and production of nuclear, biological and chemical assets in former Soviet member states to transition from