War Plan Orange, as well as the other color-coded plans, was officially withdrawn in 1939 in favor of the Rainbow Plan series. Navy’s Asiatic Fleet retained the basic mission 'to hold the entrance to MANILA BAY, in order to deny MANILA BAY to ORANGE naval forces.' In this scenario, the chance of timely reinforcements was very low. The plan’s final (1938) revision gave no indication of how long it should take the Navy to advance into the western Pacific and tacitly recognized the hopeless position of the American forces in the Philippines. During the plan’s revisions and due to real-world developments, the American military planners finally concluded that Japan could only be defeated after a long, costly war. The plan’s naval component entailed rapid offensive battle-fleet operations across the Pacific, theoretically in time to strengthen defenses centered in the Philippines. War Plan Orange, with Japan as the notional foe, was the longest and most detailed. strategies for a variety of hypothetical war scenarios. During the 1920s and 1930s, the Joint Planning Committee (the future Joint Chiefs of Staff) of the Joint Army and Navy Board developed a number of color-coded war plans to outline potential U.S.

Us navy pacific fleet world war 2