21.   Nearby villages often dig deep trenches to shield them from herds and illegally leave behind poison mixed with salt to kill them.

22.   One worker was buried in the ground when the deep trench collapsed during repair works Sunday.

23.   Russian troops, battered by surprise rebel counterattacks in Chechnya, were placed on alert Thursday and dug deep trenches in vulnerable villages to fend off new attacks.

24.   The Syrians had dug deep trenches crisscrossing the hill.

25.   Deep trenches dug by tank tracks were still visible on the ground leading to the military intelligence base whose small barracks was entirely demolished.