Henry Halleck

Henry Wager Halleck (January 16, 1815 – January 9, 1872) was a senior United States Army officer, scholar, and lawyer. A noted expert in military studies, he was known by a nickname that became derogatory: "Old Brains". He was an important participant in the admission of California as a state and became a successful lawyer and land developer. Halleck served as the General-in-Chief of the Armies of the United States from 1862 to 1864, and then became Chief of Staff for the remainder of the war when Ulysses S. Grant was appointed to that position. Early in the American Civil War, Halleck was a senior Union Army commander in the Western Theater. He commanded operations in the Western Theater from 1861 until 1862, during which time, while the Union armies in the east were defeated and held back, the troops under Halleck's command won many important victories. However, Halleck was not present at the battles, and his subordinates earned most of the recognition. The only operation in which Halleck exercised field command was the siege of Corinth in the spring of 1862, a Union victory which he conducted with extreme caution, which allowed the Confederate force to escape. Halleck also developed rivalries with many of his subordinate generals, such as Grant and Don Carlos Buell. In July 1862, following Major General George B. McClellan's failed Peninsula Campaign in the Eastern Theater, Halleck was promoted to general-in-chief. Halleck served in this capacity for about a year and a half. Halleck was a cautious general who believed strongly in thorough preparations for battle and in the value of defensive fortifications over quick, aggressive action. He was a master of administration, logistics, and the politics necessary at the top of the military hierarchy, but exerted little effective control over field operations from his post in Washington, D.C. As general-in-chief he refused to give orders to his subordinate commanders, instead offering advice, but leaving the final decisions up to the generals in the field. As a result, his subordinates frequently criticized him and often ignored his instructions.