[from
The Cambridge History of Japan, Vol. 6] The Japanese army's war plans, reflecting emphases rather than strict numerical priorities, ascribed first importance to the Russians as the potential enemy from the time of the Russo-Japanese War until the birth of the Soviet Union. With
the increase in American influence in the Far East attending a deterioration in U.S.-Japanese relations, the United States replaced Russia after 1918 as the main national enemy. (p. 315)
The Japanese national defence policy was revised further in the mid- 1930s. After the breakdown of the naval accords in 1935, the navy in particular
stressed the growing danger of American containment. The giant American naval building program, the major American manoeuvres conducted near Midway Island, and espionage reports on the top-secret Orange War Plan alarmed navy leaders. By 1936, the Japanese navy had drawn up new contingency plans based on "defence in the north, advance to the south." In other words, the naval general staff was looking toward Southeast Asia, a zone of special interest to the colonial powers there, especially Britain and Holland. As a result,
the British were added to the list of national enemies in the revision of 1936. However, operational planning against England, involving the neutralization of Hong Kong and Singapore, was not introduced until 1939, and anti-Dutch operations not until 1941.(my italics, p.318)
Bookmarks