How was World War II a total war?

American-English Dictionary defines "total war" as "[a] war that is unrestricted in terms of the weapons used, the territory or combatants involved, or the objectives pursued, especially one in which the laws of war are disregarded." ... In WWII, almost the entire world's industrial output was to make equipment for war.

Explanation:

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

is it multiple choice