15th Infantry15th Infantry is a Registered Property, Municipality of Piddig, Ilocos Norte located at Piddig, Ilocos Norte, Region I.
The 15th Infantry is a headquarter of USAFIP NL by Captain O' Day. It was a military garrison during the Japanese Occupation. At present, the Infantry is in good condition.
During World War II, among the towns in Ilocos Norte that suffered the most under both the Filipino guerillas and the Japanese army was Piddig. It was made the headquarters of the 21st Infantry, USAFIP NL by Captain John P. O' Day. During the heyday of occupation in Piddig, the town witnessed its public plaza atrocities against Filipinos so monstrous they demonstrated the meanest level the human race could capably degenerate. Many Filipinos died here on more suspicion of collaboration with the Japanese Army; without benefit of investigation or trial suspicion which was equivalent to conviction. Death was by clubbing and stoning, by the bolo and the knife, by the bow and arrow as well as the gun. (Alvarez)