A few days later, on March 31, the rebel attack on Naco began with a train car loaded with explosives and sent whirling down the tracks to explode in the center of town.

After this failed, rebel pilots dropped improvised aerial bombs on the Federals, and even managed to wound several American bystanders watching the battle from their side of the border.

One window was shattered and a man received a minor injury in what became the first aerial bombardment of the contiguous United States by a foreign power in American history.

Both victims were under the command of Major Rayma L. Andrews, an American air combat veteran under contract by the Mexican government to lead a detachment of bombers.

The rebel pilots also went into action for a final time, and again Murphy managed to drop a few bombs on the Arizona side of the border, causing a significant amount of damage to several buildings and wounded more innocent bystanders.