The Bronze Age is a time period that shows the ability of ancient cultures to create weapons and artifacts made from copper and bronze. This time period falls in between the Stone Age and the Iron Age. Its significance relies in its advancements it provided for civilization.
They opposed it because isolationist sentiment was growing and many people feared American involvement in another war and this was how many Americans view President Wilson's goal of establishing an international peacekeeping organization after World War I. The correct option among all the options that are given in the question is option "D".
Operation Barbarossa was the Nazi German military invasion of the "USSR", since this was the famous surprise attack by Germany that broke the Nazi-Soviet Pact in World War II.
For Italy, they were spies who collected top secret knowledge for the Allied Powers. They were U.S. soldiers who fought off the enemy successfully. They were British troops leaving their units to join the enemy.
About 5,000 Slaves served in the continental army, and by 1778 many states slaves who served in the American Revolution were granted their freedom.