An amphibious ship shortfall is hampering Marine aviation efforts in the Pacific, according to a Marine Corps official, who added it could also impact Army aviators as that service rebalances its focus on the region. Marine aviator units in Hawaii face a "big challenge" trying to secure deck-landing qualifications, which they need to land on and take off from amphibious ships during the day, at night and during poor weather conditions, Lt. Gen. John Wissler, III Marine Expeditionary Force commander,...