Pilipinas Sierra explores and traverses the rugged Caraballo Mountains from Sta. Fe in Nueva Vizcaya to Sta. Maria East, in Pangasinan via the historic Villa Verde Trail. From January 30, 1945, The U.S. 32nd Infantry Division (Red Arrow Division) advanced along the trail heavily fortified by the elite soldiers Japanese 14th Area Army. By May 28, 1945, about 4500 Japanese, 3200 American, and numerous Filipinos were among the casualties when the "Red Arrows" have taken Salacsac Pass.