A summit that took place in December, 1989, where Gorbachev and Bush declared an end to the Cold War. They agreed on US economic support, the future of Eastern Europe (Germany and Baltic Republics), and reductions of forces in Europe. Also, Gorbachev also suggest loosening ties to the USSR.
I have a feeling ur in my class but the answer to ur question is a role in government is like someone who runs the community by state or country like senetors and all that jazz