Allied, Central Powers, F.R.O.G. - Flanders Reenacting Organization Group, Great War Historical Society, Old Rhinebeck Aerodrome Home Page, Peter's Great War Reenacting, The Great War Association, The Saint Louis Escadrille, Western Front Association, US Branch

American Units, British and Commonwealth Units, Events, German Units, 10th Dragoons, Polish 1st Armoured Division, 13th Demi-Brigade, French Foreign Legion, 20th Century Tactical Studies Group, Battaglione Paracadutisi Nembo, California Historical Group, Commemorative Historical Society, Finnish KevOs4 Reenactor Group, First Allied Airborne Army, Graef System - Tactical Combat Rules, Het Nederlandsch Verzet