Anti-laser aerosol was a form of laser-blocking artificial cloud cover. The Galactic Republic first employed this tactic at the Battle of Paarin Minor during the Clone Wars. It was in turn used by the Confederacy of Independent Systems during the Battle of Murkhana in the final days of the Clone Wars. The Fire Breather, used by the Yuuzhan Vong during their invasion of the galaxy, exhaled a form of anti-laser aerosol.