In June 1944, Eichelberger was summoned to Sixth Army headquarters by Krueger. The Battle of Biak, where the 41st Infantry Division had landed in May, was going badly, and the airfields that MacArthur had promised would be available to support the Battle of Saipan were not in American hands. Eichelberger found that the Japanese, who were present in larger numbers than originally reported, were ensconced in caves overlooking the airfield sites. While the Americans were better trained and equipped than at Buna, so too were the Japanese, who employed their new tactics of avoiding costly counterattacks and exacting the maximum toll for ground gained. After seeing the situation for himself, Eichelberger concluded that Fuller's 41st Infantry Division had not done too badly. Nonetheless, as at Buna, Eichelberger relieved a number of officers that he felt were not performing as the battle ground on. His orders were to supersede Fuller as task force commander rather than relieve him as division commander, but Fuller requested his own relief, and Krueger obliged him. On Eichelberger's recommendation, Fuller was replaced by Brigadier General Jens A. Doe. Krueger was unimpressed with Eichelberger's performance on Biak, concluding that Eichelberger's tactics were unimaginative, and no better than Fuller's, and may have delayed rather than expedited the capture of the island. On the other hand, MacArthur thought sufficiently highly of Eichelberger's performance to award him the Silver Star.