Collections (22)Aerial reconnaissanceIdeas 1×In progress 1×Completed 6×Air CombatIdeas 7×In progress 11×Completed 13×Area 51Ideas 1×In progress 1×Completed 3×Armored WarfareIn progress 1×Completed 4×Cold WarIdeas 6×In progress 8×Completed 18×D-Day and the Battle of NormandyCompleted 7×Death from AboveIdeas 5×In progress 7×Completed 12×Deutschland!In progress 4×Completed 4×Grumman's CatsIdeas 2×In progress 2×Completed 3×Movie StarsIdeas 4×In progress 3×Completed 8×NASAIdeas 1×Completed 5×Naval AviationIdeas 5×In progress 6×Completed 9×Naval warfareIdeas 1×In progress 1×Completed 5×Operation Enduring FreedomIdeas 1×In progress 1×Completed 2×SpaceIdeas 1×Completed 5×Special OperationsIdeas 2×In progress 6×Completed 1×Strategic bombing and nuclear detterenceIdeas 1×Completed 5×Tom Clancy'sIdeas 1×In progress 6×Completed 4×USAAF/USAF Tactical Air PowerIdeas 1×In progress 3×Completed 8×Vietnam WarIdeas 1×In progress 1×War in UkraineCompleted 1×World War IIIdeas 3×In progress 7×Completed 9×Queued 1×