Junichiro Koizumi reached a new milestone in his political career Wednesday when he tied Yasuhiro Nakasone as the third-longest-serving prime minister since World War II.

His 1,806 days in office follows only the 2,798 days posted by Eisaku Sato, who won the Nobel Peace Prize in the 1970s, and the 2,616 days of Shigeru Yoshida, who served two terms -- 1946-1947 and 1948-1954.

Koizumi won't match their stints if he steps down in September, as he has often pledged.