Joshua Lawrence Chamberlain (September 8, 1828 – February 24, 1914) was a college professor from Maine who volunteered to join the Union Army without the benefit of any formal military education, and became a highly respected and decorated Union officer during the American Civil War, reaching the rank of brigadier general (and brevet major general). For his gallantry at Gettysburg, he was awarded the Medal of Honor. He was given the honor of commanding the Union troops at the surrender ceremony for the infantry of Robert E. Lee's Army at Appomattox, Virginia. After the war he served as a Republican Governor of Maine for four terms and served on the faculty and as president of his alma mater, Bowdoin College.

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Battle of Gettysburg

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Chamberlain achieved fame at the Battle of Gettysburg, where his valiant defense of Little Round Top became the focus of many publications and stories. Sent to defend the southern slope of Little Round Top by Col. Strong Vincent, Chamberlain found himself and the 20th Maine at the far left end of the Union line, with the 83rd Pennsylvania, 44th New York, and 16th Michigan infantry regiments to their right. He quickly understood Vincent's insistence of the tactical significance of Little Round Top, and thus the need for the 20th Maine to hold the Union left at all cost. The men from Maine waited until troops from the 15th Alabama regiment, under Col. William C. Oates, charged up the hill, attempting to flank the Union position. Time and time again the Confederates struck, until the 20th Maine was almost doubled back upon itself. With many casualties and ammunition running low, Col. Chamberlain recognized the dire circumstances and ordered his left wing (which was now looking southeast, compared to the rest of the regiment, which was facing west) to initiate a bayonet charge. From his report of the day: "At that crisis, I ordered the bayonet. The word was enough."

The 20th Maine charged down the hill, with the left wing wheeling continually to make the charging line swing like a hinge, thus creating a simultaneous frontal assault and flanking maneuver, capturing many of the Confederate soldiers and successfully saving the flank. Chamberlain was slightly wounded in the foot at that battle by a spent bullet. For his tenacity at defending Little Round Top he was known by the sobriquet Lion of the Round Top. Later in 1863, he developed malaria and was taken off of active duty until he recovered.