Maine's role in the American Revolution has traditionally been obscured by the fact that it was part of Massachusetts during the conflict and did not become a state in its own right until 1820. Thousands of men from what is now Maine served in the Revolutionary War, but they did so alongside men from Massachusetts and in units identified as Massachusetts regiments. Together these men fought in nearly every key engagement of the war, including: the siege of Boston, invasion of Canada, and defense of New York in 1775-76, and the battles of Trenton, Princeton, Hubbardton, Saratoga, Monmouth, Rhode Island, Newtown, Stony Point, and finally, Yorktown. Although much of Maine's contribution to the Revolutionary War occurred outside its borders, significant events like the seizure of the Margaretta in Machias, and the British destruction of Falmouth (Portland), brought the war home to Maine.