Stability operations secure national goals for military action by establishing the conditions for lasting peace after conflict or by mitigating the effects of humanitarian crisis. During the occupation of Japan following the end of World War II, American forces conducted stability operations that effectively did both. In the process, the American occupation forces transformed a defeated enemy nation into valued ally. This study identified lessons applicable to future missions from the American stability operations conducted in Japan from 1945 to 1952 by examining the strategy for the occupation, the operational plan, and the stability tasks conducted. The United States prior to 1945 adopted a strategy that defined the ends, ways, and means for occupation of Japan upon successful conclusion of combat operations in the Pacific Theater. American forces led by GEN Douglas MacArthur developed plans for occupation that translated national strategy into stability tasks to units. The operational units of the occupation forces, like the U.S. Eighth Army, executed both initial responses and transformative actions that significantly contributed to the recovery of Japan in the post-war period.