Includes bibliographical references (pages 143-150) and index.Allan Nevins pointed out that Missouri was "of critical importance to the salvation of the Union" in the Civil War. The richest and most heavily populated state of the trans-Mississippi West, Missouri was the key to political, economic, and, and military control of the western borderline. In the present work, the author makes a careful study of the fight among unconditional unionists, conditional unionist, and secessionists for control of Missouri.Missouri decides for the Union -- Union military strength asserts itself -- The provisional government is established -- The provisional government survives Fremont -- The partnership is cemented -- Difficulties mount under Curtis -- Mi...