In 1896, Andres Bonifacio founded the Katipunan to prepare his band of Filipinos for armed revolt against the Spanish government.

That republic was dissolved on December 14 by the Pact of Biak-na-Bato, with Aguinaldo and other senior leadership going into exile in Hong Kong.

During the exile period, some elements of the PRA remained active in the Philippines under the Central Executive Committee established by Francisco Macabulos.

The 1898 Treaty of Paris formalized the end of the Spanish–American War, with one of its provisions being cession of the Philippines to America by Spain.

During the final years of the Philippine–American War, with the notable successes by the all-Filipino Macabebe Scouts cavalry squadron (raised in 1899) under U.S. command against the PRA, the American President Theodore Roosevelt officially sanctioned the raising of the Philippine Scouts (PS) as part of the United States Army, with full effect starting from October 1901.

Earlier, in August that same year, came the colonial civil government's decision to found the Philippine Constabulary (PC) as the national gendarmerie force for law enforcement.

[7] This contributed to ending the conflict in 1902, even as resistance continued (inclusive of the Muslims of the south, resulting in the Moro Rebellion) through 1914.

The first Filipino to die in World War I was Private Tomas Mateo Claudio who served with the U.S. Army as part of the American Expeditionary Forces to Europe.

[9][10] The Tomas Claudio Memorial College in Morong Rizal, Philippines, which was founded in 1950, was named in his honor.

[11] The Philippine National Guard unit of the U.S. Army was deactivated following World War I, then formally disbanded in 1921.

The act specified that insofar as may be practicable, original appointments by the President in grades above third lieutenant "shall be made from among those formerly holding Reserve Commissions in the United States Army, from among former officers of the Philippine Scouts and Constabulary, from among former officers of the National Guard and from such others who possess exceptional ability or special training and skill.

Coast artillery instruction was carried on at Fort Stotsenburg and at Grande Island in Subic Bay by personnel supplied largely by the American commander at Corregidor.

[17][18] With an annual appropriation of 16 million pesos, the mobilized units trained new Filipino members in defending the nation and protecting its people.

Japanese forces invaded the Philippines after the bombing of Pearl Harbor on the island of Oahu on December 7, 1941.

After the surrender, thousands of Filipinos formerly under U.S. command (especially the former Visayas-Mindanao Force, which had seen little combat) evaded Japanese confinement and hid in the jungle.

After initial clashes based on religious and political rivalries order was gradually restored, with most willing to trust the United States to grant independence in time.

President Sergio Osmeña and Major General Basilio J. Valdes ordered the re-establishment of the army.

After the restoration of the Commonwealth of the Philippines on October 20, 1944, President Sergio Osmeña, the government, military officials and cabinet returned from exile in the United States.

In the early fifties and the mid-sixties, the Philippine government extended a helping hand to war-torn countries as part of its commitment as member of the United Nations.

The unit is also undergoing significant upgrades as the Army slowly fulfills its modernization efforts and will soon be responsible for future air support and improved transport operations.

The Philippine Army has made use of its existing equipment to fulfill its mandate while modernization projects are underway.

7898 declares the policy of the State to modernize the military to a level where it can effectively and fully perform its constitutional mandate to uphold the sovereignty and preserve the patrimony of the republic.

The law, as amended, has set conditions that should be satisfied when the defense department procures major equipment and weapon systems for the army.