Russia launched its largest single drone attack of the war against Ukraine's cities on June 1. The Ukrainian Air Force reported that they faced 472 unmanned one-way attack (OWA) drones overnight.

The record may not stand for long. The prior record was on May 26, when Moscow launched some 355 drones. The day before, Russia had set a record with 298 Shaheds, which itself surpassed the May 18 tally.