SCHOFIELD BARRACKS, Hawaii - U.S. Army Spc. Jessica Knoerr from Joint Base Lewis-McChord, Wash. practices for the sitting volleyball event for the Pacific Regional Trials at Schofield Barracks, Hawaii on Nov. 7, 2017. Pacific Regional Trials, hosted by the Tripler Army Medical Center Warrior Transition Battalion (WTB) at Schofield Barracks, includes wounded, ill and injured Soldiers from the WTBs at Joint Base Lewis-McChord and Schofield Barracks.