Answer:
a. Czechoslovakia
Explanation:
<em>"On August 20, 1968, the Soviet Union led Warsaw Pact troops in an invasion of Czechoslovakia to crack down on reformist trends in Prague. Although the Soviet Union's action successfully halted the pace of reform in Czechoslovakia, it had unintended consequences for the unity of the communist bloc."</em>
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more detailed info found here; <em>https://history.state.gov/milestones/1961-1968/soviet-invasion-czechoslavkia</em>
King James I granted The Virginia Company a royal charter for the colonial pursuit in 1606.
The French and the British had a conflict over the Ohio river valley because of the control over fur trading. The Britishers tried to take the business away from the French by offering the locals more goods against fewer furs. The French had originally taken control over the Ohio river valley before the Britishers tried to get entry into the valley. The French did not take this heavy handedness of the Britishers lightly and so they started creating a line of forts. These forts were built to protect the fur traders from the invading Britishers. Many British settlers also started ariving in the Ohio river valley and this was not taken gladly by the French.