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Neutrality Patrol

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Title: Neutrality Patrol  
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Subject: Great Lakes Patrol, USS Dickerson (DD-157), USS Balch (DD-50), USS Savannah (CL-42), Somers-class destroyer
Collection: Battle of the Atlantic, United States Navy and Coast Guard Patrols
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Neutrality Patrol

U.S. Navy Vought SBU-1 dive bombers of scouting squadron VS-42 flying the Neutrality Patrol in 1940

The Nazi invasion of Poland on September 1, 1939, began World War II hostilities in Europe; and the United States Navy Chief of Naval Operations (CNO) established a combined air and ship patrol of the United States Atlantic coast, including the Caribbean Sea, on September 4. President Franklin D. Roosevelt declared the United States’ neutrality on September 5, and declared the naval patrol a Neutrality Patrol.[1] Despite the name, the Neutrality Patrol favored the British, because the Royal Navy had significantly greater access to the Atlantic.[2]

Contents

  • Neutrality Zone 1
  • Organization 2
  • Communications 3
  • New bases 4
  • Convoy escort 5
  • References 6
  • External links 7
  • Notes 8

Neutrality Zone

On September 4, 1939, the CNO ordered the Atlantic Squadron to establish a combined air and ship patrol to observe and report the movements of warships of warring nations within a line extending east from Boston to 65 degrees west and thence south to the 19th parallel and seaward around the Leeward and Windward Islands.[1] The concept of a naval Neutrality Patrol within that zone was presented to a Conference of Foreign Ministers of the American Republics convened in Panama on September 25. After considerable debate, the conference agreed on October 2, 1939, to extend the neutrality zone southwesterly parallel to the northeastern coast of South America approximately 300 miles (480 km) offshore.[3]

Organization

Battleships USS Arkansas, Texas and New York with the aircraft carrier USS Ranger (with aircraft squadrons VB 4, VF 4, VS 41 and VS 42 embarked)[4] formed a reserve force at Hampton Roads to support the following patrols:[5]

  • Patrol One: Destroyers [5]

Communications

The CNO orders of September 4 directed the patrols to report the movements of warships of warring nations in cipher. U.S. Navy ships were initially instructed to avoid making any report while in the vicinity of such warships to avoid performance of unneutral radio direction finding service or the impression that an unneutral service was being performed.[6] On October 9, President Roosevelt instructed the navy to promptly transmit reports in plain English; and the Neutrality Patrol was instructed on October 20 to report contacts with plain-language radio transmissions.[7]

The Royal Navy destroyer HMS Hyperion intercepted the German liner Columbus on December 19 after three days of radioed position reports by Neutrality Patrol destroyers and cruisers. The Neutrality Patrol similarly radioed position reports of the British RFA tanker Patella a few days later, but there were no German ships in position to intercept. The German freighter Konsul Horn left Aruba on January 7, 1940, posing as a Soviet ship to avoid identification by the Neutrality Patrol. The German freighter Helgoland sailed from Colombia on October 24, 1940, and evaded pursuit attempts by Neutrality Patrol destroyers. The German freighter Rio Grande similarly evaded the Neutrality Patrol by sailing from Rio de Janeiro on October 31; but USS Plunkett prevented German ships Orinoco and Phrygia from leaving Tampico, Mexico on November 15.[8]

New bases

Neutrality Patrols began operating from Bermuda following the Destroyers for Bases Agreement. The base was commissioned on April 7, 1941; and Carrier Division 3 (USS Ranger, Wasp, and Yorktown) began using the base the following day. By mid-June cruisers USS Memphis, Milwaukee, Cincinnati and Omaha were patrolling from Trinidad south along the coast of Brazil.[9]

Convoy escort

To augment the fleet units already engaged in the Neutrality Patrol which President Roosevelt had placed around the eastern seaboard and Gulf ports, the United States Navy recommissioned 77 destroyers and light minelayers which had lain in reserve at either Philadelphia or San Diego. In Newfoundland on August 9, 1941, President Roosevelt agreed to provide American destroyers as escorts for the Canada to Iceland portion of HX convoys and westbound ON convoys.[10] USS Greer ineffectively engaged U-652 on September 4; and on September 11 President Roosevelt declared Axis ships entered the neutrality zone at their own risk, and ordered the U.S. Navy to attack any vessel threatening ships under American escort.[11] HX 150 sailed September 16, 1941, as the first convoy with American escort.[12] ON 18 sailed September 24 as the first westbound convoy with American escort.[13] The Gleaves-class destroyer Kearny was torpedoed while escorting Convoy SC 48 on October 17, 1941.[14] Reuben James was torpedoed and sunk on October 31, 1941, while escorting Convoy HX 156.[15]

References

  • Cressman, Robert J. (2000). The Official Chronology of the U.S. Navy in World War II. Annapolis, Maryland: Naval Institute Press.  
  •  
  • Potter, E.B.;  
  • van der Vat, Dan (1988). The Atlantic Campaign. Harper & Row.  

External links

  • "Strict Neutrality - Britain and France at War with Germany: September 1939 - May 1940". United States Navy and World War II. Naval-History.net. Archived from the original on 2006-11-18. Retrieved 2007-05-14. 
  • Capt. William E. Scarborough, USN (Ret.). "The Neutrality Patrol: To Keep Us Out of World War II? Part 1" (PDF). Naval Historical Center, United States Navy. Retrieved 2007-05-14. 
  • Capt. William E. Scarborough, USN (Ret.). "The Neutrality Patrol: To Keep Us Out of World War II? Part 2" (PDF). Naval Historical Center, United States Navy. Retrieved 2007-05-14. 

Notes

  1. ^ a b Cressman, p. 2
  2. ^ Potter & Nimitz, p. 548
  3. ^ Morison, pp.14&15
  4. ^ Cressman, p.5
  5. ^ a b c d e f g h Morison, p.15
  6. ^ a b Cressman, p.3
  7. ^ Cressman, pp.8&9
  8. ^ Cressman, pp.13-17&34-35
  9. ^ Morison, p.83
  10. ^ van der Vat, p.205
  11. ^ Cressman, p.50&51
  12. ^ Morison, p.86
  13. ^ Morison, p.90
  14. ^ Morison, p.93
  15. ^ Morison, p.94
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