the German Democratic Republic
Answer: The south seceded because Abraham Lincoln was elected president
Explanation: Since Lincoln was an abolitionist, the economic interests of the slave-owner southern landowners were threatened, as it would mean economic ruin, since it meant they would have to pay wages and a change their way of life.
I dont know what your referring to but in the times before the Soviet Union Carl Marx had written many books on communism and socialism that were put from just theory to reality
People would lose oxygen and animals would go extinct.
Well anybody who is fighting a war that must ship soldiers across the ocean. Considering you're in middle school, the answer would probably be Britain in the American revolution or the 7 years war.