Prior to the battle, three girls decorate their pillows.

As the battle began, anyone with a pillow became fair game.

A battler winds up to unleash his pillow fury.

This guy has his battle face on.

There were hundreds of simultaneous battles taking place.

This girl tries to protect herself.

Union Square was inundated with pillow fighters.

These two girls decided to have a one-on-one battle up in the air.

This guy tried to fend off a whole crowd.

Sitting on top of a friend’s shoulder made this girl an easy target.