Burgoyne found himself trapped by much larger American forces with no relief, so he retreated to Saratoga (now Schuylerville) and surrendered his entire army there on October 17.

His surrender, says historian Edmund Morgan, "was a great turning point of the war because it won for Americans the foreign assistance which was the last element needed for victory.

He won a small tactical victory over American General Horatio Gates and the Continental Army in the September 19 Battle of Freeman's Farm at the cost of significant casualties.

News of Burgoyne's surrender was instrumental in formally bringing France into the war as an American ally, although it had previously given supplies, ammunition, and guns, notably the de Valliere cannon which played an important role in Saratoga.

Burgoyne's forces were thrown back to the positions that they held before the September 19 battle, and the Americans captured a portion of the entrenched British defenses.

[13] British Lieutenant General John Burgoyne moved south from the province of Quebec in June 1777 to gain control of the upper Hudson River valley.

[14] Furthermore, news reached Burgoyne on August 28 that St. Leger's expedition down the Mohawk River valley had turned back after the failed Siege of Fort Stanwix.

[15] General William Howe had taken his army from New York City by sea on a campaign to capture Philadelphia instead of moving north to meet Burgoyne.

[19] The Continental Army had been in a slow retreat since Burgoyne's capture of Ticonderoga early in July, under the command of Major General Philip Schuyler, and was encamped south of Stillwater, New York.

On August 19, Major General Horatio Gates assumed command from Schuyler, whose political fortunes had fallen over the loss of Ticonderoga and the ensuing retreat.

[25] He ordered 750 men from Israel Putnam's forces defending the New York highlands to join Gates' army in August, before he was certain that Howe had indeed sailed south.

He also sent some of the best forces from his own army: Colonel Daniel Morgan and the newly formed Provisional Rifle Corps, which comprised about 500 specially selected riflemen from Pennsylvania, Maryland, and Virginia, chosen for their sharpshooting ability.

[32] Arnold also realized such a flanking maneuver was likely, and petitioned Gates for permission to move his forces from the heights to meet potential movements, where the American skill at woodlands combat would be at an advantage.

[33] Gates, whose preferred strategy was to sit and wait for the expected frontal assault, grudgingly permitted a reconnaissance in force consisting of Daniel Morgan's men and Henry Dearborn's light infantry.

Three subalterns of the 20th regiment on this occasion, the oldest of whom did not exceed the age of seventeen years, were buried together[42]The final stroke of the battle belonged to the British.

The attack on the 21st was called off when Burgoyne received a letter dated September 12 from Henry Clinton, who was commanding the British garrison in New York City.

Burgoyne, running low on men and food, was still in a very difficult position, but he decided to wait in the hope that Clinton would arrive to save his army.

[53] Unknown to either side at Saratoga, General Lincoln and Colonel John Brown had staged an attack against the British position at Fort Ticonderoga.

[54] Brown and a detachment of 500 men captured poorly defended positions between Ticonderoga and Lake George, and then spent several days ineffectually bombarding the fort.

In addition to the return of Lincoln's detachment, militiamen and supplies continued to pour into the American camp, including critical increases in ammunition, which had been severely depleted in the first battle.

Gates had received consistent intelligence from the stream of deserters leaving the British lines and had also intercepted Clinton's response to Burgoyne's plea for help.

As an escort, the generals took Fraser's Advanced Corps, with light troops and the 24th Foot on the right and the combined British grenadiers on the left, and a force drawn from all the German regiments in the army in the center.

[65] Leaving their camp between 10 and 11 am, they advanced about three-quarters of a mile (1 km) to Barber's wheat field on a rise above Mill Brook, where they stopped to observe the American position.

[70] While General Fraser was mortally wounded in this phase of the battle,[71] according to Luzader a frequently told story claiming it to be the work of Timothy Murphy, one of Morgan's men, could be a 19th-century fabrication.

[73] The first phase of the battle lasted about one hour and cost Burgoyne nearly 400 men, including the capture of most of the grenadiers' command, and six of the ten field pieces brought to the action.

Balcarres had set up his defenses well, and the redoubt was held, in action so fierce that Burgoyne afterwards wrote, "A more determined perseverance than they showed … is not in any officer's experience".

[79] Seeing that the advance was checked, and that Learned was preparing to attack the Breymann redoubt, Arnold moved toward that action, recklessly riding between the lines and remarkably emerging unhurt.

One British officer said: The courage and obstinacy with which the Americans fought were the astonishment of everyone, and we now became fully convinced that they are not that contemptible enemy we had hitherto imagined them, incapable of standing a regular engagement and that they would only fight behind strong and powerful works.

[95][96] Once news of Burgoyne's surrender reached France, King Louis XVI decided to enter into negotiations with the Americans that resulted in a formal Franco-American alliance and French entry into the war.

[103] From 1972 to 1977, at the request of the National Park Service, archeologist Dean R. Snow conducted field investigations and excavations in and around the battlefield site, and recovered various artifacts and two human skeletons.