Blacks were the least group for aid.
Answer:
Women gained more freedom not just men.
Explanation:
Women of many races played many roles in the war. They were nurses, worked in factories, ran charities, sent care packages and even joined in the military. Some would just stay and raise family at home while their husbands would fight in the war.
This raised equality for women as well filled empty male seats which led to people as a community accepting women as a whole in the workplace and proved they can do as much as men do.
The United States was the last to join the Allied Powers because they did not want to be apart of the war. They joined the Allied Powers after Japan bombed Pearl Harbor.