The Enemy (Child novel)

Reacher returns to the bar across the street from the motel in an attempt to identify the alleged prostitute where he first meets Delta Force operative Christopher Carbone.

Garber is suddenly transferred to a new command in South Korea and replaced with Col. Willard, a deeply unpleasant bureaucrat who instructs Reacher to write off Carbone's death as an accident.

Believing that the two murders are connected, Reacher and Summer focus on the one thing missing from Kramer's newly recovered briefcase: the printed agenda from a conference he was supposed to attend for members of the armored divisions.

Coomer and Vassell deny that such an agenda exists, and Willard begins to turn up the pressure on Reacher, forcing him to rely on his wits, contacts in the military police, and years of experience as he tries to unravel the true reason why Kramer's briefcase was stolen.

After returning to the United States with Summer following his mother's funeral, Reacher secures a meeting with the Chief of Staff, and reveals his findings: with the collapse of the Soviet Union imminent, the army is preparing to downsize its armored units in favor of infantry, and Kramer and his fellow officers, not wanting to lose their prestigious jobs and perks, were preparing to orchestrate an elaborate public relations and lobbying scheme to persuade Congress and the American people to reject the plan.

The missing agenda is subsequently retrieved from Carbone's billet: it contains a plan to assassinate eighteen prominent infantry officers, including many rising stars, to cripple their modernization efforts.

Instead, Reacher accepts the charge after reflecting on the harm he did in fact cause to the bouncer and furthermore to avoid disgracing Carbone's memory further, and looks forward to serving on the front lines again.