Inside this one-story building in the Bavarian countryside, Army staff officers camp before a bank of computers conducting a weeklong war game called "Victory Scrimmage," testing the skills of five units - including the 101st Airborne Division and the 1st Armored Division - that might soon attack the forces of Saddam Hussein.
Even though U.S. forces pulverized Iraqi troops 12 years ago in Desert Storm, senior Army officers here, who concluded the war game Wednesday, say they are not underestimating their weakened enemy.
And, while confident of victory, they know many things can go wrong on the battlefield. They are particularly concerned with so-called "asymmetrical" tactics, in which an opponent strikes at a stronger foe in an unconventional manner.
Will the Iraqi dictator unleash his dreaded chemical or biological weapons? Will he create a humanitarian disaster unrivaled since World War II that will tax the U.S. military's ability to simultaneously supply its soldiers and care for fleeing refugees?
Will he mount a disinformation campaign that could inflame the Arab world and threaten U.S. troops stationed in the region?
Lt. Gen. William S. Wallace, the highest-ranking officer taking part in the computerized games, would command U.S. Army divisions operating from Kuwait should President Bush give the order to attack. Wallace realizes the stakes for both Hussein and the U.S. military are higher than during the 1991 Persian Gulf war.
"This time we're talking regime change," said the soft-spoken Vietnam veteran, strapping on a shoulder harness with a .45-caliber pistol and dropping into a folding chair in his command tent.
"It would seem to me that he [Hussein] has the opportunity, should he elect to do so, to cause a lot more problems."
All details of the field problems are classified, said officers, who spoke only in general terms.
One of Wallace's concerns is whether the commanders from these diverse army units, who have never worked together, will be able to form a cohesive force.
There is also the problem of the Iraqi terrain. U.S. troops will not be making a quick dash to Kuwait, as they did in 1991, but will mount a campaign that ranges far and wide into Iraq, across rivers, deserts and valleys as well as through cities and towns.
"It's much more complex, as to geography, made even more complex by the urban areas scattered around," said the four-star officer, who spent the gulf war as a senior instructor for armored units at the Army's remote National Training Center in California's Mojave Desert.
Wallace takes pains to say that the possible fight would not be one of conquest, a battle between Christianity and Islam, but a war of liberation. He worries that Hussein will try to "manipulate the Arab mind" in both Iraq and other Muslim countries and "twist" the allied war aims.
That makes psychological operations to reach the civilian population - from broadcasts to leafleting - an important part of both the training and the looming conflict, he said.
During the week, division commanders and their staffs are peppered with problems, ranging from communications breakdowns and supply problems, to the discovery of chemical and biological weapons sites, to a wave of refugees swarming the battlefield.