Like the Scuds, the Nodongs could be launched from fixed sites or mobile launchers. Silo launchers made it possible to launch multiple strikes within an hour, but were highly vulnerable to enemy retaliation. Mobile launchers could only carry one missile and had to be brought to hidden stockpiles for reloading.

Both the fixed and mobile launchers were operated by a one-key system, once the launch coordinates were programmed into the computer. Turning the key began a two-minute countdown, during which time the launch command could only be stopped with both the key and a cancellation code. The code was known only to the officer in charge. In the event that he was unable to give it, the second in command had to get the code from Pyongyang.

The Nodong was a relatively unsophisticated system as missiles went. But it was effective in its purpose, which was to keep Seoul honest with the threat of sudden destruction from the skies. Even with Patriot missiles in place, the danger was still very real: designed to track and strike at the missile itself, the Patriot often left the warhead intact, allowing it to fall and explode somewhere in the target zone.

Colonel Ki-Soo was the ranking officer at the site in the Diamond Mountains, and when the guard post radioed ahead to tell him of the arrival of Colonel Sun, he was taken by surprise. Resting in his tent, which was situated at the foot of a steep hill, the bald, oval-faced officer rose and greeted the jeep as it arrived. Sun handed him his orders without being asked, and Ki-Soo retired to his blackout tent.

When the tent flap was secure, he switched on the lantern, withdrew the papers from the leather pouch, and unfolded the single sheet:

Office of the High Command

Pyongyang, June 15, 4:30 P.M.

From: Colonel Dho Oko

To: Colonel Kim Ki-Soo

Colonel Lee Sun has been dispatched by General Pil of Intelligence Operations to oversee the security of the missiles under your command. He will not interfere with your operation unless it directly affects the security of the site.

Affixed to the bottom of the document were the seals of the General of the Armed Forces and of General Pil.

Ki-Soo carefully folded the document and replaced it in the pouch. It was authentic, but something didn't seem right about it. Sun had come with two agents-- one man to guard each missile, which was sensible enough. Yet something wasn't right.

He looked at the field phone and thought about calling headquarters. Boots crunched on the gravel outside. Ki-Soo doused the lantern and pulled the flap aside: Colonel Sun was standing in the dark, facing the tent. His hands were clasped behind his back and his body was rigid.

"Is everything all right?"

"It appears to be," said Ki-Soo, "though I'm curious about one thing."

"What is that?" Sun asked.

"Generally, orders such as these mention the number of men in the party. Yours do not."

"But they do. They mention me."