What were the key turning points and initial impacts of the American Revolution?

During early 1777, British officials considered a number of plans for their upcoming campaign. One they apparently decided upon was to campaign through the Hudson River Valley and thereby cut off New England from the rest of the colonies. General William Howe was to drive north from New York City while General John Burgoyne was to drive south from Canada. Meanwhile, British General Barry St. Leger would drive down the Mohawk Valley in upstate New York. The major problem was not with the plan but with its execution. Historians continue to debate whether Howe was ill-informed or simply acted on his own. Whatever the reasons, Howe decided to capture Philadelphia, the seat of the Continental Congress, rather than to work in concert with Burgoyne and St. Leger.

Howe hoped that by seizing Philadelphia, he would rally the Loyalists in Pennsylvania, discourage the rebels by capturing their capital, and bring the wr to a speedy conclusion. Washington tried to thwart Howe's plan, but Howe out-maneuvered him at Brandywine Creek and then at Germantown. While Howe's forces settled into winter quarters in Philadelphia, the Continental Army went into winter quarters at Valley Forge. There, the army faced deprivation in the extreme.

Explanation:

there is no image for me to refer