Ulysses S. Grant did more than any other single Union general to secure the Norths victory in the Civil War, but he did not achieve that victory alone. Grants ability to inspire and cultivate the talents of the officers serving under him was a key factor in his remarkable military success. Steven Woodworth and his fellow authors provide ample evidence for that in this first of a twovolume reassessment of Grants officer corps from Cairo to Appomattox.Covering the wars western theater through July 1863, Woodworth et al. highlight the character and accomplishments of these men and show how their individual relationships with Grant helped pave the way to Union victory. They demonstrate how each officers service contributed to Grants success and development as a general, how interaction with Grant affected each officers career, and how the relationship ultimately contributed to the course of battle and the wars final outcome.These portraits include the most important of Grants lieutenants as well as some who are representative of various officer types. Here are William T. Sherman and Grants other trusted commanders from the Army of the Tennessee, revered mentor Charles F. Smith, and difficult subordinate William S. Rosecrans. Here too are such citizen soldiers as Lew Ben HurWallace and Peter Osterhaus, de facto intelligence chief Grenville Dodge, and naval officers Andrew Foote and David Dixon Porter, whose relationships with Grant proved crucial to the war effort.Full of revealing insights regarding military leadership and the special problems of Civil War command, Grants Lieutenants adds a new dimension to our understanding of the Union road to victory and gives us the true measure of these dedicated men.