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Office of the Military Advisor to the Commonwealth Government of the Philippines

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Title: Office of the Military Advisor to the Commonwealth Government of the Philippines  
Author: World Heritage Encyclopedia
Language: English
Subject: Douglas MacArthur, United States Department of War, Field marshal
Collection: American Colonial Period of the Philippines, Government Agencies Established in 1935, United States Department of War
Publisher: World Heritage Encyclopedia

Office of the Military Advisor to the Commonwealth Government of the Philippines

The Office of the Military Advisor to the Commonwealth Government (OMACG) was created in 1935 upon the initiative of President Manuel L. Quezon by the Philippine and American governments for the purposes of developing a system of national defense for the Commonwealth of the Philippines by 1946. OMACG's recommendations were adopted by the Philippine National Assembly in Commonwealth Act Number 1, the National Defense Act of 1935.[1]

The Military Advisor to the Commonwealth Government was Major General Grunert (1940-1941), as well as retired Lieutenant colonel Sidney L. Huff.[1]

OMACG produced a plan calling for a gradual 10-year build up so that the Philippines would have small regular and reserve armies, an air force, and a fleet of

  1. ^ a b c d e f g h i j Morton, Louis. The War in the Pacific: Fall of the Philippines. 1953. Washington D.C.: Government Printing House Retrieved 2012-08-13.


See also:

MacArthur continues, "When developed the Philippine Army will be strong enough to oppose any conceivable expeditionary force. By 1946, the Islands will be in a favorable posture of defensive security."[1]

MacArthur adds, "These islands have enormous defensive advantages. Luzon has only 2 areas where a hostile army could land. Each of these positions is broken by strong defensive positions.[1]

MacArthur argues, "A small fleet will have distinct effect in compelling any hostile force to approach cautiously. The only naval task is that of inshore defense. This will be provided by flotillas of fast torpedo boats, supported by an air force."[1]

MacArthur's Point Of View

Upon the accidental death of Lieutenant Colonel Ord, in January 1938, Major Sutherland was brought in as his replacement. Colonel Eisenhower left in December 1939 and was replaced by Lieutenant Colonel Marshall. In October 1937, Captain Casey joined the group as an engineering advisor and later Major Marquat was appointed as an antiaircraft advisor. These men would stay with MacArthur throughout the war.[1]

Staff Changes

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 24 155 mm guns, without fire control equipment. Later, while assigned to USAFFE, MacArthur asked for 4 12in, 4 8in, and 22 additional 155 mm guns, as well as 30 searchlights. This request was received in December, too late.[1]

These plans did not involve the use of US forces, but were intended for use by district military commanders of the army which was to be created under the National Defense Act.[1]

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.[1]

War Plans and Seacoast Defenses


  • War Plans and Seacoast Defenses 1
  • Staff Changes 2
  • MacArthur's Point Of View 3
  • References 4


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