HONOLULU -- U.S. Secretary of Defense Donald Rumsfeld's visit to South Korea this past week should be seen for what it really was, an early step in a long, gradual disengagement of U.S. land forces from South Korea and a greater reliance on sea power to maintain an American security posture in Asia.

As he flew through Northeast Asia, Rumsfeld sprinkled clues about the future of U.S. military dispositions there even as he reaffirmed the American treaty commitments to South Korea and Japan. Other U.S. officials explained what the hints meant.

A primary reason for pulling back from South Korea is that the U.S. needs the 17,000 soldiers of the Second Infantry Division elsewhere. As Rumsfeld and military leaders have said repeatedly, U.S. forces are stretched thin. The U.S. Army has only 10 divisions and cannot afford to have one tied down in South Korea.