“All of these efforts jelled in the winter and spring of 1968–1969, greatly increasing the combat power and flexibility of the division,” Ewell and Hunt later wrote in their history of the 9th Division’s operations in the delta.76 The statistics bear this out. During the first month of Speedy Express, the 9th Infantry Division logged a 24:1 kill ratio. It would jump to an astounding 68:1 in March and an eye-popping 134:1 in April.77 For the first quarter of 1969, the 9th Division had double the kill ratio of the next most prolific U.S. division. By April 1969, the Pentagon noted that of eight U.S. divisions then being tracked for statistical analysis, the 9th Infantry Division accounted for fully one-third of the enemy KIAs.