Demonstrators in the Peace Walk event, organised by a group of young people, called on the U.S. not to answer violence with violence. They also called on the Japanese government not to support any U.S. military action that may bring more violence.

"I want all the participants to complete the walk peacefully to spread the message to other people," Mutsuko Katsura, an Ibaraki City Assembly member in Osaka and one of the organizers, told participants before the walk. Some demonstrators carried placards that read "No War" and "No Violence," while others carried flowers.

The marchers gathered in Nakanoshima before marching to the Osaka City Hall, the U.S. Consulate and the Osaka Central Post Office near to the station.

Before the antiwar rally, the organisers submitted a letter of condolence for the terrorist attack to the U.S. Consulate. They then requested the U.S. refrain from using violence to retaliate for the attack.