B-52 bombers using unguided bombs were useful in bombing large ammunition depots, warehouses and factories but were less effective against Iraq's dug-in troops, General Horner said.

He said that the introduction of American and allied ground forces wouldinduce the dug-in Iraqi troops to leave their fortified positions to contest American advancing forces.

On the 17th, the Japanese attacked the first of the three Chinese defensive lines, but were repeatedly turned back by the dug-in troops and their heavy machine-gun fire.

The 444-foot-high hill housed an Iraqi Army observation post, backed by dug-in infantry troops, and provided the Iraqis the only vantage point over the Marine positions.

He noted without caring the expressions on the faces of the MPs at the entrance and the platoon of troops dug-in around the command post.

"After all, this resolution talks about his withdrawing his forces from Kuwait, something that he cannot do in just a matter of hours with 500,000 dug-in troops in Kuwait."

A hedgerow behind a large farmhouse on the right was occupied by well dug-in German troops.

The 60 mm mortar is most effectively used in firing smoke shells, and is generally useless against armoured vehicles or dug-in troops.

The 55th Army, in the meantime, had advanced despite heavy casualties inflicted by the dug-in Spanish troops.

Units facing dug-in troops would call in artillery from far to the rear, and the artillery would only have to be moved after the troops had moved fairly long distances.