One of the most notable battles during the Puerto Rico Campaign occurred between the Spanish forces and Puerto Rican volunteers, led by Captain Salvador Meca and Lieutenant Colonel Francisco Puig against the American forces led by Brigadier General George A. Garretson on July 26, 1898. The Spanish forces engaged the 6th Massachusetts in a firefight in what became known as the Battle of Yauco. Puig and his forces suffered 2 officers and 3 soldiers wounded and 2 soldiers dead. The Spanish forces were ordered to retreat.