从传统意义上讲,国际日期变更线以西的广大太平洋海域,被称之为西太平洋地区。这一地区在第二次世界大战至20世纪60年代初,为美国海军西太平洋基地体系发展的初期。60年代后,美国海军核力量获得迅速发展,核动力潜艇和核动力航母相继服役,现代化舰只的投入使用,以及第二次世界大战期间许多老旧舰艇 Traditionally, the vast Pacific Ocean to the west of the international date line is known as the Western Pacific. This area was the beginning of the development of the US Navy’s western Pacific base system from the Second World War to the early 1960s. After the 1960s, the U.S. Navy’s nuclear forces rapidly developed. The nuclear-powered submarines and the nuclear-powered aircraft carriers were successively commissioned. The modernization of ships was put into operation and many old ships during the Second World War