Battle of Wawa Dam

Battle of Wawa Dam
Part of the Philippines Campaign of World War II
Date February 20–May 31, 1945 Location Montalban, Rizal, Philippines 14°43′40″N 121°11′30″E / 14.72778°N 121.19167°E / 14.72778; 121.19167 Result Allied victory
Belligerents
United States  Commonwealth of the Philippines	Japan  Second Philippine Republic
Commanders and leaders
Douglas MacArthur Walter Krueger Oscar Griswold Charles P. Hall Yay Panlilio	Tomoyuki Yamashita Shizuo Yokoyama Takashi Kobayashi[1] Osamu Kawashimai Susumu Noguchi[2]
Units involved
Ground units: Sixth Army XIV Corps[3] 6th Infantry Division 43rd Infantry Division 1st Cavalry Division 112th Cavalry Regiment XI Corps 37th Infantry Division 38th Infantry Division Filipino Guerilla Forces Marking Guerrillas Hunters ROTC Air units: Fifth Air Force 1st Marine Aircraft Wing[4] Marine Aircraft Group 24 Marine Aircraft Group 32	Ground units: Shimbu Group Kawabuchi Force Kobayashi Force 62nd Infantry Division Noguchi Force Naval units: Imperial Japanese Navy Manila Naval Defense Group[2] 3rd Naval Battalion 4th Naval Battalion
Strength
40,000	30,000[5][3]
Casualties and losses
Filipino and U.S. forces 315 killed 1,010 wounded	Imperial Japanese military ~ 7,000 killed

The Battle of Wawa Dam (Filipino: Labanan sa Dam ng Wawa), also known as the Seizure of Wawa Dam (Filipino: Pag-agaw sa Dam ng Wawa), was a subsidiary action of the Battle of Manila to secure the vital water sources east of the capital. It was the longest continuous combat during the Liberation of the Philippines, lasting from February 20–May 31, 1945. It also proved critical in neutralizing the Imperial Japanese Army's Shimbu Group, which controlled the Sierra Madre mountain range east of Manila in Southern Luzon.^[6][2]