The Tokyo Subway Sarin Attack occurred on March 20, 1995, when members of the Aum Shinrikyo cult released sarin gas in the Tokyo subway system during the morning rush hour. This coordinated attack targeted five trains, resulting in the deaths of 13 people and causing severe injuries to over 5,000 others. The incident highlighted vulnerabilities in urban transportation security and led to significant changes in emergency response protocols in Japan. In the aftermath, authorities arrested several cult members, including the group's leader, Shoko Asahara, who was later convicted and executed for his role in the attack.