The second comprehensive rehearsal for the upcoming grand gathering to mark the 80th anniversary of the victory in the Chinese People's War of Resistance Against Japanese Aggression and the World Anti-Fascist War concluded in Beijing early Sunday, according to the event's media center.The rehearsal, held from 5:30pm Saturday to 3:30am Sunday in Tian'anmen Square, involved about 40,000 participants, including those taking part in the rehearsal and personnel providing on-site support.Organizers said the second rehearsal, based on the first one, included more elements and segments, and all processes were organized in an orderly manner and closely linked, achieving the intended goals while further testing the organizational, logistical, and command operations.The grand gathering, which will include a military parade, is scheduled for Sept 3 in Tian'anmen Square.Source