How did President Polk's placement of soldiers along the Rio Grande contribute to the outbreak of war with Mexico?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.

What effect did the agricultural revolution have on farmers?

Do you think the isolationist were correct in arguing the roosevelt’s policies including lead lease, would increase the likelihood of war?