The office drew up defense plans for the islands of
Luzon,
Cebu,
Negros,
Panay,
Leyte,
Mindanao,
Bohol,
Mindoro, and many of the smaller islands. The plans included the establishment of seacoast defenses along the seven straits which give access to the inland waters of the Philippines. These plans did not involve the use of US forces, but were intended for use by district military commanders of the
Philippine Army which was to be created under the National Defense Act. The seacoast defenses, mentioned above, were to consist, naturally, of heavy coastal guns. These defenses were scheduled to be completed in April 1942. The
War Department, at some time or other, had sent twenty-four
155 mm guns, without
fire control equipment. Later, while assigned to
USAFFE, MacArthur asked for four
12 inch, four
8 inch, and 22 additional 155 mm guns, as well as 30
searchlights. This request was received in December, too late to be acted upon before Japanese offensive actions in 1941. ==Staff Changes==