Wallace Line to the west of the Philippines. Wallace's studies in Indonesia demonstrated the emerging theory of evolution, at about the same time as Joseph Dalton Hooker and Asa Gray published essays also supporting Darwin's hypothesis. Understanding of the biogeography of the region centers on the relationship of ancient sea levels to the continental shelves. Wallace's Line is visible geographically when the continental shelf contours are examined; it can be seen as a deep-water channel that marks the southeastern edge of the Sunda Shelf which links Borneo, Bali, Java, and Sumatra underwater to the mainland of southeastern Asia. Australia is likewise connected
William S. Wallace of the V Corps on July 18, 2001. He commanded the corps during the 2003 invasion of Iraq until June 14, 2003, when he left to become the commanding general of the Army's Combined Arms Center at Fort Leavenworth, Kansas. His replacement in Iraq was Lt. Gen. Ricardo S. Sanchez. Wallace assumed command of the United States Army Training and Doctrine Command (TRADOC) at Fort Monroe, Virginia, on October 13, 2005. Wallace relinquished command of TRADOC, and retired from the United States Army on December 8, 2008. Among his awards and decorations are: William S. Wallace William Scott Wallace, is