Note 24 — Chapter III · Plans Are Made and Forces Are Readied
Reading edition
Submarines from both the Southwest Pacific and Central Pacific were to support the operations by maintaining an offensive reconnaissance over the most probable Japanese route of advance, maintaining observation and lifeguard services and furnishing weather reports and strategic patrols. Submarines from the Central Pacific were to patrol in the Formosa, Luzon, Tokyo Bay, and Sasebo areas, while those from the Seventh Fleet patrolled in the area of Makassar Strait, the Celebes Sea, and the Sulu Sea. Submarines from both areas were to maintain a strong patrol in the Hainan—northern Luzon areas.24