This weekend is a re-enactors - and the viewing publics - delight in New York state. First of all, starting on Saturday (Sept. 20) at 9:00 a.m. a Civil War encampment will be open to the public in Congress Park in Saratoga Springs. This event ends at noon on Sunday.
Also this weekend the National Park Service is commemorating the 231st anniversary of the Battles of Saratoga in Saratoga National Historical Park in Stillwater, New York. Revolutionary War re-enactors representing British and American soldiers will be in the park all weekend.
Finally at Fort Edward in New York, from an even earlier era of warfare, re-enactors will be taking part in recreating the French and Indian War (1754-1763). Re-enactors portraying British Regulars, Native Americans, Rangers and American Colonial soldiers will be turning out for this event.
For more details see Paul Post's article Passing Muster from The Saratogian linked here.