Colonel Ernesto Ravina Air Base (CERAB) or Crow Valley Gunnery Range, and formerly the Tarlac Military Testing Ground, was the main bombing range of the United States Armed Forces in the western Pacific, and by the Armed Forces of the Philippines. It is located in Camp O'Donnell in Tarlac, Philippines. The 42-mile facility is located approximately 22 kilometers from Clark Air Base and is primarily used for aerial combat training, which include bombing and strafing practice, as well as ground unit maneuver and live fire exercises.

Camp O'Donnell is a current military base and former United States military reservation in the Philippines located on Luzon island in the municipality of Capas in Tarlac. It housed the Philippine Army's newly created 71st Division and after the Americans' return, a United States Army camp. During World War II, the reservation was used as a prisoner-of-war camp for Filipino and American soldiers captured by Japan during its successful invasion of the Philippines. About 60,000 Filipino and 9,000 Americans were housed at the camp. During the few months in 1942 that Camp O'Donnell was used as a prisoner-of-war camp, about 20,000 Filipinos and 1,500 Americans died there of disease, starvation, neglect, and brutality.