On August 12, 2025, Japan commemorated the 40th anniversary of the Japan Airlines Flight 123 crash, the deadliest single-aircraft accident in history, which occurred on August 12, 1985. The Boeing 747 jumbo jet crashed into the ridge of Mt. Osutaka in Gunma Prefecture, killing all 520 passengers and crew aboard. Memorial events included a lantern floating ceremony with approximately 200 lanterns on the river at the foot of Mt. Osutaka, a candlelight vigil featuring 520 candles matching the number of victims, and a solemn moment of silence at the exact crash time of 6:56 p.m. Bereaved families and former JAL employees gathered for a memorial mountain climb to the crash site, placing flowers and paying respects at gravesites on the ridge. The event saw participation from relatives of victims of other disasters, such as the 2011 Great East Japan Earthquake and the 2014 Mount Ontake eruption. Actor Hitomi Kuroki, who lost a Takarazuka Revue troupe member in the crash, attended the memorial climb and rang the "Safety Bell." Discussions during the anniversary highlighted the importance of preserving the memory and lessons of the tragedy, with concerns about the aging of surviving relatives and the upcoming generation of JAL employees who have no direct knowledge of the accident. The crash was attributed to a faulty repair, and police and JAL had a documented dispute over the cause. The anniversary events underscored a continued commitment to aviation safety in Japan.