The History of American Military. Richard W. Stewart
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and had little systematic means of procuring them. Greene decided not to engage Cornwallis’ army in battle until he had built up his strength, instead to pursue delaying tactics to wear down his stronger opponent. To accomplish this goal, he built on Gates’ earlier dispositions. Gates had created a mobile screening force from his best troops. Greene first took the unorthodox step of dividing his army in the face of a superior force, moving part under his personal command to Cheraw Hill and the augmented light screening forces under Brig. Gen. Daniel Morgan west across the Catawba over 100 miles away. It was an intentional violation of the principle of mass. Greene wrote:
I am well satisfied with the movement.… It makes the most of my inferior force, for it compels my adversary to divide his, and holds him in doubt as to his own line of conduct. He cannot leave Morgan behind him to come at me, or his posts at Ninety-Six and Augusta would be exposed. And he cannot chase Morgan far, or prosecute his views upon Virginia, while I am here with the whole country open before me. I am as near to Charleston as he is, and as near Hillsborough as I was at Charlotte; so that I am in no danger of being cut off from my reinforcements.
Left unsaid was the fact that divided forces could live off the land much easier than one large force and would constitute two rallying points for local militia instead of one. Greene was in effect sacrificing mass to enhance maneuver.
Cornwallis, at this point in his career an aggressive commander often prone to act before thinking, had determined to gamble everything on a renewed invasion of North Carolina. Ignoring Clinton’s warnings, he depleted his Charleston base by bringing almost all his supplies forward. In the face of Greene’s dispositions, Cornwallis divided his army into not two but three parts. He sent a holding force to Camden to contain Greene, directed Tarleton with a fast-moving contingent of 1,100 infantry and cavalry to find and crush Morgan, and moved cautiously with the remainder of his army up into North Carolina to cut off any of Morgan’s force that escaped Tarleton.
On January 17, 1781, Tarleton caught up with Morgan west of King’s Mountain at a place called the Cowpens, an area of open forest near the Broad River. (Map 11) Morgan chose this site to make his stand less by design than by necessity, for he had intended to get across the Broad. Nevertheless, on ground seemingly better suited to the action of regulars, he achieved a little tactical masterpiece, making the most effective use of his heterogeneous force, numerically equal to that of Tarleton but composed of three-fourths militia. Selecting a low hill as the center of his position, he placed his Continental infantry on it, deliberately leaving his flanks open. In front of the main line he posted militia infantry in two lines, instructing the first line to fire two volleys and then fall back on the second, the combined line to fire until the British pressed them, then to fall back to the rear of the continentals and re-form as a reserve. He placed Lt. Col. William Washington’s cavalry detachment behind the hill, ready to charge the attacking enemy at the critical moment. Every man in the ranks was informed of the plan of battle and the part he was expected to play in it.
Map 11
On finding Morgan, Tarleton ordered an immediate attack. His men moved forward in regular formation and were momentarily checked by the militia rifles; but, taking the retreat of the first two lines to be the beginning of a rout, Tarleton’s men rushed headlong into the steady fire of the continentals on the hill. When the British were well advanced, the American cavalry struck them on the right flank, broke the British cavalry, and then wheeled on the infantry. The militia, having re-formed, charged out from behind the hill to hit the British left. Caught in a classic double envelopment, the British surrendered after suffering heavy losses. Tarleton managed to escape with only a small force of cavalry he had held in reserve. It was on a small scale and with certain significant differences a repetition of the classic double envelopment of the Romans by a Carthaginian army under Hannibal at Cannae in 216 b.c., an event of which Morgan, no reader of books, probably had not the foggiest notion. But it was a clever use of the terrain and troops by one of the American Army’s most intuitive and inspirational commanders.
Having struck this fatal blow against Tarleton, Morgan still had to move fast to escape Cornwallis. Covering 100 miles and crossing two rivers in five days, he rejoined Greene early in February. Cornwallis by now was too heavily committed to the campaign in North Carolina to withdraw. Hoping to match the swift movement of the Americans, he destroyed all his superfluous supplies, baggage, and wagons and set forth in pursuit of Greene’s army. The American general retreated through North Carolina into southern Virginia and crossed to safety behind the Dan River. Cornwallis’ exhausted forces began to retreat into North Carolina to reach their depot and replenish their supplies. As the British started south, Greene recrossed the Dan and followed, keeping just out of reach of his adversary to avoid any battle he did not wish. Finally, on March 15, 1781, at Guilford Court House in North Carolina, on ground he had chosen himself, Greene gave battle. By this time he had collected 1,500 continentals and 3,000 militia to oppose the 1,900 regulars the British could muster. The British nominally won this contest because they managed to hold the field after a hard-fought battle, but they suffered disproportionate casualties of about one-fourth of the force engaged. It was like Bunker Hill a Pyrrhic victory. His ranks depleted and his supplies exhausted, Cornwallis withdrew to Wilmington on the coast to once again rebuild his army. Then he decided to move north to join the British forces General Clinton had sent to Virginia.
Greene, his army in better condition than six months earlier, pushed quickly into South Carolina to reduce the British posts in the interior. He fought two battles—at Hobkirk’s Hill on April 25 and at Eutaw Springs on September 8—losing both but with approximately the same results as at Guilford Court House. One by one the British interior posts fell to Greene’s army or to militia and partisans. By October 1781 the majority of the British had been forced to withdraw to their two strongholds along the coast, Charleston and Savannah. Greene had lost battles but won a campaign. In so doing, he paved the way for the greater victory to follow at Yorktown.
Yorktown: The Final Act
As Howe and Burgoyne went their separate ways in 1777, each seemingly determined to satisfy only personal ambitions, so Clinton and Cornwallis in 1781 paved the road to Yorktown with their disagreements and lack of coordination. Clinton was Cornwallis’ superior in this case, but the latter enjoyed the confidence of Germain to an extent that Clinton did not. Clinton, believing that without substantial reinforcements the British could not operate far from coastal bases, had opposed Cornwallis’ ventures in the interior of the Carolinas. When Cornwallis came to Virginia, he did so without even informing his superior of his intention.
Since 1779 Clinton had sought to paralyze the state of Virginia by conducting raids up its great rivers, arousing the Tories, and establishing a base in the Chesapeake Bay region. (See Map 12.) He thought this base might eventually be used as a starting point for one arm of a pincers movement against Pennsylvania for which his own idle force in New York would provide the other. A raid conducted in the Hampton Roads area in 1779 was highly successful; but when Clinton sought to follow it up in 1780, the force sent for the purpose had to be diverted to Charleston to bail out Cornwallis after King’s Mountain. Finally, in 1781 he got an expedition into Virginia, a contingent of 1,600 under the American traitor, Benedict Arnold. In January Arnold conducted a destructive raid up the James River all the way to Richmond. His presence soon proved to be a magnet that drew forces of both sides to Virginia.
In an effort to trap Arnold, Washington dispatched Lafayette to Virginia with 1,200 of his scarce continentals and persuaded the French to send a naval squadron from Newport to block Arnold’s escape by sea. The plan went awry when a British fleet drove the French squadron back to Newport and Clinton sent another 600 men to Virginia along with a new commander, Maj. Gen. William Phillips. Phillips and Arnold continued their raids, which Lafayette was too weak to prevent. Then on May 20 Cornwallis arrived from Wilmington and relieved Phillips. With additional temporary reinforcements sent by Clinton, he was able to field a force of about 7,000 men, about a quarter of the British strength in