Exercise Longstep

Longstep
Part of Cold War (1947–1953)
Aegean Sea
Type	NATO multi-lateral naval exercises
Location	NATO Southern Region: Northern Italy, Mediterranean Sea, Aegean Sea, Turkey
Planned by	Allied Forces Southern Europe (AFSOUTH)
Objective	Deployment of NATO naval and amphibious forces
Date	November 1952
Executed by	Admiral Robert B. Carney, USN, Commander-in-Chief Allied Forces Southern Europe (CINCAFSOUTH)
Outcome	Exercise successfully executed.

Exercise Longstep was a ten-day NATO naval exercise held in the Mediterranean Sea during November 1952 under the overall command of Admiral Robert B. Carney, USN, the Commander-in-Chief Allied Forces Southern Europe (CINCAFSOUTH). This exercise involved over 170 warships and 700 aircraft, and it featured a large-scale amphibious assault along the western coast of Turkey.

Exercise Longstep featured combined training in the coordination of radio and wire communications between ships, aircraft, and ground forces of the six-nation, five-language combined force. With Exercise Grand Slam, this exercise served as the prototype for future NATO maritime exercises in the Mediterranean Sea during the Cold War. Exercise Longstep was also an early test of the combined military command structure for NATO's Southern Region.

Background

In January 1950, the North Atlantic Council approved NATO's military strategic concept of deterring Soviet aggression.^[1] NATO military planning took on a renewed urgency following the outbreak of the Korean War, prompting NATO to establish Supreme Headquarters Allied Powers Europe (SHAPE) under the command of General of the Army Dwight D. Eisenhower, U.S. Army, on 2 April 1951.^[2][3] Exercise Longstep was an early naval exercise for SHAPE's southern regional command, Allied Forces Southern Europe (AFSOUTH).

Command structure

The overall exercise commander for Grand Slam was Admiral Robert B. Carney USN, NATO's Commander-in-Chief Allied Forces Southern Europe (CINCSOUTH).^[4] AFSOUTH component commanders during Longstep were:^[5][6]

• Allied Air Force South (AIRSOUTH) - Major General David M. Schlatter, USAF
• Allied Land Forces South (LANDSOUTH) - Lieutenant General Maurizio Lazzaro De Castiglioni, Italian Army
• Allied Naval Forces South (NAVSOUTH) - Vice Admiral John H. Cassady, USN

Operation history

The objective of the Allied ("Blue") forces was to dislodge enemy ("Green") invasion forces from their occupying positions in the Eastern Mediterranean. Green forces consisted of the Italian 56th Tactical Air Force and submarines of the United States, Great Britain, France, Greece, and Turkey lying in wait to ambush the Blue amphibious convoy departing from Italian embarkation ports. Over 170 warships and 700 aircraft were involved in Operation Longstep.^[4]

Blue naval forces were centered around the U.S. Sixth Fleet, under the command of Vice Admiral John H. Cassady, USN, and its two aircraft carriers, the Franklin D. Roosevelt and Wasp. Air sorties were flown by American and Italian aircraft attacking Blue naval forces, and Blue carrier-based aircraft counter-attacking Green military targets in northern Italy.^[4] Operation Longstep concluded with an amphibious landing at Lebidos Bay south of İzmir, Turkey, involving 3000 French, Italian, and Greek troops, including the Third Battalion, Second Marines, under the overall command of General Robert E. Hogaboom, USMC.^[4][7]

In the actual landing at Lebidos Bay, the Italians went ashore at H-Hour minus six in a diversionary attack on nearby Doganbey Island. This was followed by the main landing force led U.S. Marines along with the French and Greek troops. After securing the beach-head and setting up a defensive perimeter, the landing force was re-embarked onto the amphibious shippping off-shore, concluding Exercise Longstep.^[4]

Carrier aviation units

Carrier Air Group Seventeen (CVG-17) embarked on USS Franklin D. Roosevelt (CVB-42):^[8]

Fighter Squadron 174 (VF-174): Vought F4U-4 Corsair Fighter Squadron 172 (VF-172): McDonnell F2H-2 Banshee Attack Squadron 175 (VA-175): Douglas AD-4/4L Skyraider Heavy Attack Squadron 3 (VAH-3): Douglas A3D-1 Skywarrior	Fleet Composite Squadron 62 (VC-62) Detachment: McDonnell F2H-2P Banshee Fleet Composite Squadron 33 (VC-33) Detachment: Douglas AD-4N Skyraider Fleet Composite Squadron 12 (VC-12) Detachment: Douglas AD-4W Skyraider Utility Helicopter Squadron 2 (HU-2) Detachment: Piasecki HUP-1

Carrier Air Group Eighteen (CVG-18) embarked on USS Wasp (CV-18):^[9]

Fighter Squadron 14 (VF-12): Vought F4U-4 Corsair Fighter Squadron 12 (VF-12): McDonnell F2H-2 Banshee Attack Squadron 15 (VA-15): Douglas AD-4 Skyraider	Fleet Composite Squadron 62 (VC-62) Detachment 38: McDonnell F2H-2P Banshee Fleet Composite Squadron 12 (VC-12) Detachment 38: Douglas AD-4W Skyraider Utility Helicopter Squadron 2 (HU-2) Detachment: Piasecki HUP-1

Legacy

Longstep was an early attempt to integrate the vavious naval forces into a more combined force under NATO command. Another important aspect of Longstep was combined training in the coordination of radio and wire communications between ships, aircraft, and ground forces of the six-nation, five-language combined force.^[4]

See also

	Cold War portal
	NATO portal

• Cold War (1947–1953)
• Exercise Grand Slam

Notes

1. ^ "Chapter 3 - The Pace Quickens". NATO the first five years 1949-1954. NATO. http://www.nato.int/archives/1st5years/chapters/3.htm. Retrieved 2011-09-19. 
2. ^ "Chapter 4 - The Pace Quickens". NATO the first five years 1949-1954. NATO. http://www.nato.int/archives/1st5years/chapters/4.htm. Retrieved 2011-09-19. 
3. ^ "X" (July 1947). "The Sources of Soviet Conduct". Foreign Affairs 25 (4): 575–576. doi:10.2307/20030065. ISSN 0015-7120. JSTOR 20030065. 
4. ^ ^{a b c d e f} "A Big Step Forward: Operation Longstep" (PDF). All Hands. Washington, DC: BUPERS. pp. 20–21. http://www.navy.mil/media/allhands/acrobat/ah195301.pdf. Retrieved 2011-06-21. 
5. ^ Dr. Gregory W. Pedlow (2009). "The Evolution of NATO's Command Structure, 1951-2009" (PDF). Allied Command Operation (ACO). NATO. http://www.aco.nato.int/resources/21/Evolution%20of%20NATO%20Cmd%20Structure%201951-2009.pdf. Retrieved 2010-08-01. 
6. ^ "Chapter 7 - The Military Structure". NATO the first five years 1949-1954. NATO. http://www.nato.int/archives/1st5years/chapters/7.htm. Retrieved 2008-01-03. 
7. ^ "General Robert E. Hogaboom - Deceased". Official Biography. U.S. Marine Corps - Manpower & Reserves Affairs. n..d.. https://slsp.manpower.usmc.mil/gosa/biographies/rptBiography.asp?PERSON_ID=1112&PERSON_TYPE=General. Retrieved 2011-06-18. 
8. ^ "CVG-17 (R) CVB-42 Franklin D. Roosevelt August 26, 1952 - December 19, 1952 (NorLant, Med)". CV-42 Franklin D. Roosevelt. GoNavy. June 17, 2009. http://www.gonavy.jp/CV-CV42f.html. Retrieved 2011-06-18. 
9. ^ "CVGCVG-1 (T) CV-18 Wasp May 24, 1952 - October 13, 1952 (NorLant, Med)". CV-18 Wasp. GoNavy. July 28, 2010. http://www.gonavy.jp/CV-CV18f.html. Retrieved 2011-06-18. 

External links

• Operation Longstep - British Pathe