The Capture of Fort Ticonderoga

Located on Lake Champlain in northeastern New York, Fort Ticonderoga served as a key point of access to both Canada and the Hudson River Valley during the French and Indian War. On May 10, 1775, Benedict Arnold of Massachusetts joined Ethan Allen and the Green Mountain Boys of Vermont in a dawn attack on the fort, surprising and capturing the sleeping British garrison. Although it was a small-scale conflict, the Battle of Fort Ticonderoga was the first American victory of the Revolutionary War, and would give the Continental Army much-needed artillery to be used in future battles.  http://www.history.com/topics/capture-of-fort-ticonderoga