June 23-24: Hawley, Pa., commemoration of Sullivan's march with mock battles, parades. Revolutionary camp in Bingham Park, June 22; June 23, parade 10:30 a.m., battle 2 p.m. north end of park, sunset peace ceremony, dance 8:30 p.m. Information (717) 226-9626.

June 29-July 1: New Haven, commemoration of British invasion, arrival American Brigade Friday 5-7 p.m., camp Lighthouse Park; ship arrival Saturday morning, simulated landing of British forces, battle, other action; costume ball at Sheraton Park Plaza Hotel. Sunday, retreat of American brigade to West Haven, reenactment Campbell incident, marching on New Haven green; (203) 787-8367.

July 1: Richmond, Va., encampment, Civil War drills, marching at Parker Field, battle 2:20 p.m., with running commentary on maneuvers, free; (804) 649-1775.

July 14-15: Stony Point, N.Y. Revolutionary War reenactment of Anthony Wayne's assault; (301) 788-7264.

July 22: Minisink Ford, N.Y., reenactment of Revolutionary War battle, 6-8 p.m., three-day commemoration starts in Port Jervis July 20 and 21 (colonial reconstruction and festival), moves to Goshen Sunday at 9 a.m., and to Lackawaxen, Pa., (about 25 miles northwest) for 2 p.m. ceremony at Grave of Unknown Soldier, commemorating Brant's Raid, and ends with battle at Minisink Ford that evening. Donald F. Clark - (914) 294-6644/794-4714.

July 28-29: Big Pool, Md., Fort Frederick Field Days, day-long military firings, maneuvers, mock battles, demonstration of firearms through the centuries; state park division; (301) 342-2504.

Aug. 18-19: Nittany Mountain Camp-ground, near New Columbia, Pa., Civil War Battle maneuvers, 2 p.m. both days; Alan Ferranto, 254 Chestnut Ave., Bogota, N.J. 07693.

Oct. 5 through 7: Civil War reenactment at Ballestone Mansion, Essex, Md. The Pride of Baltimore will be part of the assult. Union troops will camp at Federal Hill, Baltimore. Battle Saturday and Sundary; (301) 78-7624.

Of Military Interest

June 16-17: Reenactment of Sullivan's march through Monroe County in the Revolutionary War. Starts at Brinker's Mill, Pa., march to Tannersville, where uniformed troops and camp followers will set up camp Saturday afternoon; authentic tents, colonial cooking, crafts, tactical demonstration. Sunday, march continues to Hungry Hill; commemorative services; (717) 421-5791.

June 16: Slippery Rock, Pa., Civil War Living History weekend, authentic troops only, typical camp and drills; (412) 794-8446.

June 23-24: Gettysburg, Pa., commemoration of Battle of Gettysburg, noon-8 p.m. Saturday, 10:30 a.m. - 2:30 p.m. Sunday; Gettysburg Travel Council - (717) 334-6274.

July 7-8: Antietam, Md., Civil War Encampment, "Living History," military life demonstration, 10 a.m. - 5 p.m.; (301) 788-7624.

July 22: Jefferson Rangers Encampment, Battlefield State Historic Site, Sackets Harbor, N.Y., demonstration and drills; 1-5 p.m. Site Manager - (315) 646-3634.

Aug. 3-5: Revolutionary Brigade Encampment, Sullivan campaign reenactment, Genesee Country Village, Mumford, N.Y., 10 a.m. - 5 p.m.; Genesee Country Village - (716) 546-1030.

Aug. 5: Encampment commemorating Clinton-Sullivan march, Canajoharie, N.Y.; canajoharie 79ers; (518) 673-2296.

Aug. 25-26 Sullivan-Clinton Campaign Bicentennial Commemoration, battlefield, Lowman, N.Y.; Country historian - (607) 733-2642.

Newburgh, N.Y.: New Windsor Cantonment State Historic Site, Temple Hill Rd., one mile north of Vails Gate, site of last encampment of American soldiers during American Revolutionary; exhibits, demonstrations pageantry, through Nov. 1, Wednesday-Sunday, 9:30 a.m. - 5 p.m.; (914) 561-1765.

Fort Ticonderoga, N.Y.: Pageant, restored colonial fort built 1755, military museum, guided tours, cannon firings, mortar drills and fife and drum corps in costume. Daily 8 a.m. - 6 p.m., through Oct. 31.

Oswego, N.Y.: Ft. Ontario State Historic Site, a fort from 1755 to World War II, under British, French and American forces; demonstrations and pageantry with costumed personnel, Monday-Saturday, 9:30 a.m. - 5 p.m., Sunday 1-5 p.m., through October.

Rome, N.Y.: Stanwix National Monument, National Park Service reconstruction of Revolutionary War fort; authentic artifacts, living history program with costumed personnel who act roles of garrisoned men and families. Memorial Day-Labor Day 9 a.m. - 6 p.m., rest of year (except January-March, Christmas Day), 9 a.m. - 5 p.m. daily.

Information: Office of New York State Bicentennial Commission, (518) 474-1776 (office to close soon because of budgetary problems); Brigade of American Revolutionary Commission, commander George Woodbridge, (212) 492-5519. Two monthly newsletters cover historic reenactments: Camp Chase Gazette, 3894 Cincinnati-Vanesville Rd. NE, Lancaster, Ohio 43130, covers Civil War events, $7 annually; The Rebel Index, P.O. 1250, Vidor, Tex. 77662, all periods,$5 annually. CAPTION: Picture, Waiting out the battle on guard duty at camp; By Elizabeth C. Mooney.