Word of the impending attack on the prison swept through the city.

Once again, I speak as though we knew of the impending attack.

The French, having received word of an impending attack, had built up their defenses.

We placed the men and settled down to wait for the impending attack.

Even though several people had been in the loop for months, no news of the impending attack came out.

The source had reported, "Everyone is talking about an impending attack."

Roosevelt could not have kept knowledge of an impending attack to himself.

First, the receiver must be warned of an impending attack.

So it was that, several days later, he had advance notice of the impending attack.

But administration officials said they had little evidence of an impending physical attack.