The Terrain, The Targets, The Troops

The scenario in Iraq seems all too familiar. But the real threat--especially of biological- and chemical-weapons production--is new and growing. A survey of the American Military presence in the gulf, and what our forces might face:

Scud missiles Iraq may have hidden up to 20 of these mobile, hard-to-detect weapons. Saddam had 80 chemical or biological warheads at one time; up to 20 may still exist.

Tanks Iraq has approximately 2,700 tanks, but only about 550 are modern T-72s manned by Republican Guard units

Antiaircraft About 5,500 A/A guns and 340 missile launchers

Troops Saddam scrapped his 1.2 million 'mass army' of the gulf war in favor of a better-trained force of 390,000 soldiers

Air defense Core networks have been rebuilt, though not to pre-gulf-war standards

Oilfields and refineries Saddam's lifeblood. Still need billions in foregin investment.

Army bases Bases for the leaner forces have been rebuilt

Power stations Hard hit in the gulf war but operational

Bridges Troops travel along vital roads and bridges

Conventional-weapons plants Have repaired many of the tanks and other non-nuclear weapons damaged in the gulf war

USS George Washington To provide additional support in any operation, this Nimitz-class carrier is en route to the Persian Gulf from the Mediterranean. Support ships in the group can launch Tomahawk cruise missiles. The group includes a nuclear attack submarine.

In Saudi Arabia U.N. 'Olive Branch' U-2 flights fly from Taif, Saudi Arabia. About 120 aircraft patrol the no-fly zone from here and Kuwait.

In Turkey The base at Incirlik has been the headquarters of U-2 flights since the 1960s. U.N. operation 'Northern Watch' uses over 50 planes to patrol above the 36th parallel.

Troops 30,000 Tanks 400 APCs* 500 Artillery pieces 200

PREWAR TODAY Troops 1.2 million 390,000 Tanks 5,700 2,700 APCs* 5,100 2,000 Artillery 3,850 2,230 Aircraft 524 360 *ARMORED PERSONNEL CARRIERS.

SOURCES: ANTHONY CORDESMAN, PERISCOPE'S USNI MILITARY DATABASE, JANE'S INTELLIGENCE REVIEW.