Olaguer Feliú took an active part in numerous military operations during the Philippines Campaign. He participated in the Battle of Kakarong de Sili in the island of Luzon on January 1, 1897, where the Commandant Olaguer Feliu achieved victory with only 600 men against 6.000 indigenous fighters katipuneros. As a result he was promoted to the rank of lieutenant colonel and was awarded the prestigious Laureate Cross of Saint Ferdinand.