What is associated with: after nearly 200 years of russian soviet rule this country regained its independence in 1991?

Based on the clue 'after nazi major strasser has been shot the comman...', what is the answer? What is associated with: after nbc canceled this sam waterston series in 1993 pbs produced a movie to wrap up its loose… What is associated with: after nearly 10 years of continuous occupation by astronauts it was de orbited in 2001? What is associated with: after nearly 100 years this company cut its oldsmobile brand from its line in 2004? What is referred to by 'after nevada'? What is associated with: after nuclear mutation giant ants terrorize los angeles in this 1954 classic? What is associated with: after numerous defeats in the civil war charles was beheaded in 1649 at the palace called this… What is associated with: after observing a comet in 1682 he proved it was the same one seen in 1607 1531 1456?