1. The Siege of Washington: The Untold Story of the Twelve Days That Shook the Union by John Lockwood and Charles Lockwood (Oxford UP, 2011).
A popular narrative account of events from the early war period when the U.S. Capitol was perceived as being most vulnerable to capture.
2. Barbarians and Brothers: Anglo-American Warfare, 1500-1865 by Wayne E. Lee (Oxford UP, 2011).
This study takes the English-Irish conflicts, the English Civil War, the colonial Anglo-Indian wars, the American Revolution, and the American Civil War and contrasts the nature of the fighting when the enemy is defined by similar cultural traditions or as an alien "other" (the brothers and barbarians of the title).
3. A Glorious Army: Robert E. Lee's Triumph, 1862-1863 by Jeffry D. Wert (Simon & Schuster, 2011).