The 2nd Maryland Infantry, CSA (Known initially as the First Maryland Battalion)[citation needed], was a Confederate infantry regiment made up of volunteers from Maryland who, despite their home state remaining loyal to the Union during the American Civil War, chose instead to fight for the Confederacy. The regiment was largely made up of volunteers from the 1st Maryland Infantry, CSA, which was disbanded in August 1862, its initial term of duty having expired. They saw action at many of the fiercest battles of the Civil War, taking part in the brutal fighting at Culp's Hill at the Battle of Gettysburg. The unit suffered such severe casualties during the war that, by the time of General Robert E. Lee's surrender at Appomattox Court House on April 9, 1865, only around forty men remained.