The massive and complex operation took two months to complete but it was successful far beyond all expectations.

A massive operation was launched by emergency services and 100 firemen were on the site.

"It is a massive operation with many moving parts that work quite well," he said.

But what a massive operation that had to have been, and how was it pulled off without word getting out?

Her role in three massive operations had been critical.

His people may be planning a massive operation, like against settlements in the Chain.

We'll also learn more about the equipment Google uses to keep its massive operation running.

The discovery of more victims sparked a massive operation by the police.

His thoughts were occupied by some other aspect of the massive and complex operation.

Evacuation of the population would mean a time-consuming and massive operation.