With the signing of the Treaty of Paris on December 10, 1898 (ratified Washington on February 6, 1899), the Philippines was ceded to America by Spain. The American regime brought to Dasmariñas, as it did to other parts of the country, several fundamental changes in the system of government, in language, and in educational system.
In the month of February 1899, the Philippine-American War began. General Henry Ware Lawton's brigade operated south of Manila including the province of Cavite in the middle of June 1899. The Americans could not land directly at Bacoor because Zapote river was defended by the Filipino revolutionists who built trenches as tactical defenses forming three sides of an angle which made the Filipinos hardly visible. The American's 14th Infantry Battalion swam across the during the Battle of Zapote River and under the cover of military artillery, charged against the Filipinos who then retreated to the woods.
Moving southward, the Americans encountered more Filipino revolutionists in the town of Bacoor, Imus and Perez-Dasmariñas, a battalion of infantry narrowly escaped annihilation. News had been brought to the American camp that the Filipino soldiers had evacuated the town and that the native mayor was disposed to surrender it formally to the Americans. The battalion thus went there to take possession, but before reaching the place, the Filipino revolutionists closed in on all sides, and a heavy firefight went on for hours. The Americans were saved from destruction by a desperate bayonet charge when they were rescued by General Weaton's brigade.
Placido Campos, who sided with General Emilio Aguinaldo since the beginning of the Filipino-American war in 1899, was captured together with his nephew Guillermo Campos. They were imprisoned at the Provost Political Prison on Postigo St., Intramuros, Manila where they were kept for six months.
The Americans established the Military Government in 1900. By order of the Colonel of the American Battalion stationed in Perez-Dasmariñas, the residents of the town nominated a president and a vice-president. Elected through the raising of hands were Francisco Barzaga as president and Conrado Malihan as vice-president. They served their office until the civil government was established by the Americans in 1901.
On January 31, 1901, in accordance with President McKinley's instructions that the Filipinos be allowed to manage their own municipal governments, the Second Philippine Commission enacted the Act Number 82, the new Municipal Code, placing each municipal government under the following officials: the municipal president, the vice-president, and the municipal council, who were elected by qualified voters every two years. In line with this, Placido Campos was again elected as the head of the municipality of Perez-Dasmariñas in October 1901. Francisco Barzaga then became the Treasurer of Dasmariñas. The two were re-elected in 1903.
In 1903, the American government made the first census in the Philippines. Francisco Barzaga and the secretary, Esteban Quique, made census enumerators for Perez-Dasmariñas under the leadership of Placido Campos. When the census was finished, the total population of the town was only 3,500. Before the revolution of 1898, the population was 12,000. (There were 20 Cabezas de Barangay (barangay head) and each of which had 200 persons with ages ranging from 18 to 59 years, men and women, the number of children estimated at 6,000 giving a total of 12,000.) Comparing the population prior to the revolution with that of 1948, there has been a decrease in the population of Perez-Dasmariñas. The 1948 census accounted to only 9,700 while that of the pre-revolutionary period totaled 12,000.
From 1905 to 1916, the law which was passed in 1901 took effect. It combined the municipalities of Imus, Perez-Dasmariñas and Bacoor into one, with the seat of government located at Imus. Consequently, on January 5, 1905, Perez-Dasmariñas became a part of Imus. The reason for this was to punish the insurrectos for not surrendering. Besides, the inability of the people to work outside from fear of being suspected by the Constabulary greatly decrease the income of the municipalities to the detriment of the employees and the policemen.
In 1917, under Governor General Francis Burton Harrison (1913–1921), Perez-Dasmariñas was again declared a separate municipality. The provincial governor of Cavite, Antero S. Soriano, convened the local leaders, including Placido Campos, Francisco Barzaga, and Felipe Tirona. Together, they agreed to delete the word "Perez" and retain "Dasmariñas" as the new name of the town. For the second time, Placido Campos headed the rechristened town of Dasmariñas.
The town of Dasmariñas is a town in the province of Cavite that shed blood and has given up many lives for national independence. There were many times when the Japanese conducted zonifications in the town. The barrios of Paliparan and Salawag suffered the most number of deaths. Being remote places and thinking that guerrillas were hiding there, these two barrios were zonified two times giving up several lives. The Japanese Imperial Army made the schools as their garrison.
Meanwhile, after surviving in the Bataan Death March and released from Capas, Tarlac Concenration Camp, General Mariano Castañeda returned to Cavite and helped organized the resistance movement in Dasmarinas headed by Col. Estanislao Mangubat-Carungcong of the 4th Infantry Regiment (Camp Neneng Dasmarinas) and Col. Emiliano De La Cruz of the 14th Infantry Regiment (Camp Paliparan) Fil-American Cavite Guerilla Forces, with Major Dominador I. Mangubat, MD, head of the Medical Corps, Captain Elpidio Mangubat-Barzaga Sr., Major Maximo Dela Torre, Major Joaquin Crame, Major Rosendo Navarro, Captain Serapio Guevarra, Captain Jose Bautista, Lt. Colonel Jose Medina Carungcong, 1st Lt. Pantaleon Cantimbuhan, 1st Lt. Quirino Clorina, Captain Remigio Carungcong, Capt. Gaudencio Geda, Captain Felicisimo Carungcong MD Dental Corps and (Incumbent Municipal Mayor) Captain Clemente Bautista, Captain Antonio Montoya, Captain Felipe Ilano, Captain Arsenio Sico, Captain Emmanuel Dominguez, 1st Lt. Tiburcio Mendoza, Captain Arturo Sayoto Carungcong, 2nd Lt. Leonardo Campos, 2nd Lt. Hermogenes Beltran, 2nd Lt. Teodoro Sapida, 2nd Lt. Pacifico Menez, S/Sgt. Melecio Veluz, S/Sgt Ruperto Mangubat, Captain Purificacion Medina, 2nd Lt. Filomeno Mantele this unit provided guerilla warfare and prepared to attack with every armed men when the Allied landed on the Batangas Beeches, sabotage missions, cutting off enemy communications and logistics, recoinnaissance missions, protecting civilian people against aggression by the Imperial Japanese Army and provide evacuation plans for them and intensified intelligence reports to the 11th Airborne Division, 187th Glider Infantry Regiment headed by Colonel Harry B. Hildebrand.
In May 1943, The Imperial Japanese Army have received intelligence reports of the Dasmariñeo guerilla camp of the 4th Infantry regiment in the west side of the town of Dasmariñas, here they positioned 2 long range cannons and fired 30 rounds, damaging rice plantations, crops and killing large amount of cattle, and terrorized the town's Poblacion residence, nevertheless vigilant about the situation the Dasmarineo guerillas, 4th Regiment have narrowly escaped complete annihilation. After the assault, Dasmarinas town became too hot to the Japanese because of the active guerilla activities and headquarters of the guerillas in Neneng Dasmarinas, and because of the Sakdalistas and Makapili (Japanese collaborators) denouncing and reporting all guerilla activities of Col. Estanislao M. Carungcong to the Kempeitai (Japanese Military Police) in exchange for payments and privileges and because of it the Kempeitai made another zonification on July 25, 1943 in the town proper until Dasmariñeo guerilla regimental staff Lt. Col. Jose M. Carungcong, Major Dominador I. Mangubat, Capt. Elpidio Mangubat-Barzaga Sr., Capt. Jovito Evangelista were captured and imprisoned for 2 months in Muntinglupa, Rizal prison camp until they are released except Lt.Col. Jose M. Carungcong who was sentenced to 6 years in prison.
On June 24, 1944 The Hunters ROTC guerillas headed by Col. Emmanuel De Ocampo, Lt. Col Vic Estacio and Col. Eleuterio Terry Adevoso raided the Muntinlupa New Bilibid Prison and rescued many prisoners of war and a good haul of firearms and ammunition among the prisoners was Dasmariñeo guerilla Lt. Col Jose Carungcong (4th Infantry) who managed a jailbreak during the raids of the prison camp, the Japanese Military authorities immediately issued a P50,000 peso reward in exchange for the head of the Dasmarineo guerilla Lt. Col. Jose Carungcong as wanted to be captured dead or alive.
On August 25, 1944 with the help Dasmariñeo Guerilla soldiers of the 4th Infantry Regiment of Col. Estanislao M. Carungcong, 114 Filipino military prisoners, 4 American senior officers, Volckmann's guerilla Col. Joseph Ickard, Col. Quintin Gellidon, Col. Dionisio Banting, Col. Guillermo Monfort, Col. Ildefonso De La Conception (ROTC),Col. Pablo De Ynchausti (Markings) and 70 others more made a jail break at the Muntinlupa, Rizal prison camp, the escapee's were in poor health condition and deprived of proper meals and were too skinny from bone to skin, here they were kept and given aid and sustenance and were treated by Major - Dr. Dominador Mangubat for 2 months until their health recovered from malnutrition in Neneng, Dasmarinas.
On December 17, 1944 at about 01:00 am and lasted at about 18:00 pm around 1,000 Kempeitai (Japanese Military Police) from Fort Santiago conducted another zonification in the town proper and adjacent barrios. The Church was used as their garrison and all suspected male residents involved or coordinating with the guerrilla movement of Col. E.M. Carungcong with the advise of the "Makapili Collaborators" were tortured and 15 active guerilla patriots of the 4th Infantry (Cobra Unit) inside the Church and some others that were brought at the back of the Dasmariñas Elementary School were tortured and bayonetted to death, some were hanged at the old mango tree near the school canteen, whipped, beaten, and tortured and were totally forced to expose and divulge the Dasmariñeo guerilla organization. Women were abducted and raped by the Japanese Soldiers, There were those who experienced the so-called "tinutubig" wherein the head is immersed in a drum of water.
On January 15, 1945, the day before the FACGF Gen. Castañeda - U.S 11th Airborne Major Jay Vanderpool conference in Neneng Dasmariñas, when local guerrillas ambushed nine Japanese soldiers inside a jitney in Anabu Road Salitran. The next day, Tuesday January 16, Japanese soldiers retaliated by firing indiscriminately on the town's people of Dasmariñas.
Aside from these, raid after raid were made and male residents were shot to death. Some were killed because they were mistaken as guerrilla members. Some fought face to face, during encounters in Burol, Malinta, Paliparan and Langkaan, others were killed in other towns. Most male residents of Dasmariñas were among those who fought with the Japanese in Bataan and Corregidor island. Sad to state too, there were those who joined the Bataan Death March, some of whom are already dead and some are still living to tell the tale.
On January 30, 1945 as Allied forces began to land in Nasugbu, Batangas, the Dasmariñeo guerilla force of the 4th Infantry Regiment under Col. Estanislao Mangubat Carungcong plus 1 Battalion under Major Zacarias Santiaguel of the 1st Infantry, Col. Saulog's regiment protected at all costs the National Highway 17 and attacked enemy positions at the national highway from Palapala Road inclusive extending 3000 yards east and west of the National Highway 17 to Salitran Road, and the 14th Infantry Regiment headed by Col. Emiliano De La Cruz protected at all cost the highway between Dasmarinas to Carmona, Cavite to prevent the enemy to rally and counterattack and to clear the path of the main allied forces which were by now being dropped via parachute in Tagaytay City. Enemy military vehicles approaching from the north, west and south side of the Dasmariñeo battle sector were ambushed.
FACGF Division Commander General Mariano Castañeda from their headquarters in Neneng, Dasmariñas issued the command to liberate the town of Dasmariñas to Colonel Estanislao Mangubat-Carungcong (4th Infantry Regiment Cobra Unit). The combined contingent of the FACGF's 4th Regiment, together with Colonel Lorenzo Saulog's 1st Infantry Regiment and Colonel Maximo Reyes' 11th Infantry Regiment killed 56 Japanese soldiers of the Imperial Japanese Army garrisoned in Dasmariñas leading to the total liberation of the municipality of Dasmarinas and after the smoke of the battle have subsided the Filipino and the American flag were raised together by the Dasmariñeo guerilla troops in the Dasmariñas Municipal hall as symbols of the hard earned freedom that was paid by the blood and sacrifices of the Dasmarineo martyrs after years of Japanese oppression and suffering.
Dasmariñas has a long list of heroes who sacrificed their lives for their homeland during the turbulent period of the Second World War and the period of liberation.