Although the conflict was officially declared over on July 4 , 1902 , American troops continued hostilities against remnants of the Philippine Army and other resistance groups until 1913 , and some historians consider these unofficial extensions part of the war .
Although the conflict was officially declared over on July 4 , 1902 , American troops continued hostilities against remnants of the Philippine Army and other resistance groups until 1913 . Some historians consider these unofficial extensions part of the war .