Which event resulted from a missed meeting between British generals Howe and Burgoyne?

In 1777, British General Burgoyne advanced south from Canada, expecting General Howe to meet him and support the campaign. Howe instead moved to capture Philadelphia, leaving Burgoyne isolated and short of support; Burgoyne’s army was defeated at Saratoga. So the event was the Continental army’s victory at Saratoga.

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