1) Employees are refusing to work until their demands are met, or an agreement is made.
2) For the employees to gain what they want by refusing to work.
3) When the management does not allow the employees to work.
4) To stop the workers from doing something unsafe, violent, or not socially acceptable.
5) Because both companies belong to the federal government, and are needed for Canada's well being.
6) Pension cuts to new employees
7) Vacation time was being taken away