The Peninsular Campaign, the first large-scale Union offensive in the East, took place in Virginia’s lower peninsula between March and July 1862. Leading the powerful Army of the Potomac, General George B. McClellan planned to capture Richmond by circumventing the forces protecting the Confederate capital. McClellan’s strategy succeeded until Robert E. Lee took command of those defending forces (renaming them the Army of Northern Virginia) and turned the operation into a humiliating Union defeat. J. Knowles Hare’s map of Richmond and vicinity is a post-mortem on the Peninsular Campaign. Not only does the map detail the location and dates of battles, it also shows General McClellan’s well-conducted “Union retreat.”