In general, yes it is true that increased competition for power among European states and led to imperialism, but first it led to nationalism, which then led to imperialism, since nationalism inspired far more pride.
One such event would be the famous March on Washington, which took place in 1963 and included a speech by Martin Luther King Jr. It showed that African Americans were taking matters into their own hands when it came to obtaining jobs and freedom.
To gain wealth, power, and to get profit from trading, such as furs and other goods.
The Muslim community spread through the Middle East through conquest, and the resulting growth of the Muslim state provided the ground in which the recently revealed faith could take root and flourish. The military conquest was inspired by religion, but it was also motivated by greed and politics
Because Cuba was supported by the Soviet Union at the time was the other superpower and were giving Cuba missiles that can hit the American mainland