During the industrial revolution, large quantities of workers were being employed in very appaling conditions wich weren't really fit for working conditions. For that reason, the labor unions argued and fought for them to work in better conditions and work less + for better pay.
the answer is A) forcing American sailors to serve on British ships
. Hope it helps
The Vietnam veterans were looked at as bad people. Many people thought that The Vietnam war shouldn't have happened. Also the Vietnamese didn't surrender no matter what. So the Vietnam Vets were changed because they saw military forces from a whole different place who would one after the other come (knowing they didnt have a chance) fight and die without surrendering.
The countries not included in the original alliance system were pulled into the war because they had alliances with the countries within the original alliance system. That they promised to be on their side should there ever be a war. However, this caused many conflicts because some countries had alliances with both sides.
Hope this helps.