Why may that demonstration of union solidarity be a blow to the Government?

Competition for a shrinking supply of jobs had destroyed union solidarity and, very nearly, the movement itself.

Then they sat back and watched union solidarity melt.

But some of the apparent union solidarity has an element of fear.

The first and fifth stanzas provide the strategy for labor: union solidarity.

But Wall Street investors are skeptical that the union solidarity will last.

He yelled for union solidarity to support the strike and to bring management to their knees, but to no avail.

Union members were exposed to both the rhetoric about union solidarity and the real need to support the class interest of their fellow workers.

They embraced warmly, the drivers lined up watching union solidarity at work.

It was a moment that workers described as a surprising show of union solidarity and an initial victory in what became an increasingly grim week.