The state-controlled national union requires that all factories with 100 employees or more open a branch.

Abraham Lincoln didn't want to go to war, but he knew saving the union required it.

But the union, representing pharmacists and technicians, will require some convincing.

One is that the union requires producers to pay into a pension and welfare fund to provide medical coverage for the employees.

And the unions cannot even require dues from the workers they represent.

The company asked what the union would require to lift the boycott.

Nearly all unions require their members to pay dues.

The union cannot, however, require that an employee become a member "in good standing": do more than pay dues or their equivalent.

An enlarged monetary union requires, in fact, greater internal cohesion.

Obviously, the current crisis has made it clear that a monetary union also requires economic cooperation.