The northern Australian city of Darwin on Tuesday marked the 77th anniversary of a Japanese air raid that killed hundreds during World War II.

The Bombing of Darwin, which occurred on Feb. 19, 1942, was the first attack by Japanese forces on the Australian mainland and is estimated to have killed about 250 people, as well as destroying 30 aircraft and nine ships.

Administrator of the Northern Territory Vicki O’Halloran said in remarks at a service that the arrival of the war in Darwin was responsible for “fundamentally changing Australia.”