They're not allowed to pick and choose themselves. Why and when you can strike and sympathy strike is clearly defined, if you take action outside this framework it would be an illegal strike.
And just to add, the postal service in question is private and works like a private company, though the states of Sweden and Denmark fully owns it. Employees are not state employees.
And just to add, the postal service in question is private and works like a private company, though the states of Sweden and Denmark fully owns it. Employees are not state employees.