SCHOFIELD BARRACKS – Marines with 4th Force Reconnaissance Company and U.S. Army Special Forces soldiers board a CH-47 Chinook helicopter to conduct a high altitude airborne jump at Schofield Barracks, July 14, 2017. The Marines trained with U.S. Army Special Forces to maintain proficiency in completing static line and high altitude free fall airborne jumps. - SCHOFIELD BARRACKS – Marines with 4th Force Reconnaissance Company and U.S. Army Special Forces soldiers board a CH-47 Chinook helicopter to conduct a high altitude airborne jump at Schofield Barracks, July 14, 2017. The Marines trained with U.S. Army Special Forces to maintain proficiency in completing static line and high altitude free fall airborne jumps.