On the Chinese side, troops have been massing for four days.

They think the Chinese troops are massing at the border in order to attack us.

Western reports said that troops had been massing in the region since December 1990.

Leonidas strained his eyes to see the new troops massing.

The other day, a rumor swept the city that 250,000 Iraqi troops were massing on the border.

"Is it the staging area or the place where 400,000 to 500,000 troops massed all the way to the thruway?"

German troops were massing on the west bank, piling up in the village by the stone bridge.

Even when Iraqi troops massed on Kuwait's border, he said nothing.

Mao's troops are massing outside the city; inside, Chiang's forces have been ordered to fight to the death.

Of course, satellites can also help deter aggression, since troops massing on borders are vivid from above.