User:Marcd30319/Operations Formation Star version A

Operation Formation Star was the code name for the emergency re-deployment of U.S. Seventh Fleet warships to the Sea of Japan off the eastern coast of North Korea following that country's seizure of the USS Pueblo (AGER-2) in international waters on 23 January 1968.

Operation Formation Star was the largest build-up of U.S. naval forces around the Korean Peninsula since the Korean War, but it also placed a considerable strain on the United States Seventh Fleet's support for the Vietnam War, particularly its aircraft carrier operations at Yankee Station. Although a wide range of military options were considered, the Johnson Administration elected to resolve the Pueblo crisis diplomatically.

Tensions along the Korean DMZ
Also referred to as a Second Korean War, the Korean DMZ Conflict was a series of low-level armed clashes between North Korean forces and the forces of South Korea and the United States, largely occurring between 1966 and 1969 at the Korean DMZ.

The number of incidents along the DMZ jumped from 37 in 1966 to 435 in 1967, with a combined 1967 total of 371 fatalities involving North Korea, South Korea, and United Nations forces while there were no fatalities in 1966. Also, during 1967, there were two sabotage attempts to disrupt South Korea railroad operations, the first such attempts since the Korean War. Finally, a South Korean patrol vessel was sunk by North Korea shore batteries over a fishing dispute.

In the most overt incident to date, North Korean commandos attempted unsuccessfully to assassinate the South Korea president Park Chung-hee at the presidential residence Blue House in Seoul, South Korea on 21 January 21 1968.

Operation Clickbeetle
Operation Clickbeetle was the code-name for electronic and radio intelligence-gathering operations by small converted coastal cargo ships that operated close to potential enemies' coasts in international waters. The first vessel in this program was the USS Banner (AGER-1) and the second was the Pueblo.

Beginning in 1965, the Banner completed fifteen intelligence missions involving the Soviet Union and China, with only three missions also including North Korea. While both China and the Soviet Union in particular challenged Banner's presence off their coasts, the North Koreans virtually ignored the U.S. vessel. Banner and Pueblo were under the direct operational command of the Commander, Naval Forces Japan Rear Admiral Frank L. Johnson through the Task Force 96 command staff.

On 11 January 1968, Pueblo left Sasebo, Japan, and headed northward through the Tsushima Strait into the Sea of Japan. Pueblo's specific orders were to intercept and conduct surveillance of Soviet Pacific Fleet activity in the Tsushima Strait and to gather signal and electronic intelligence from North Korea. To maintain a low profile, no naval escort was provided nor were any land-based interceptor jets on stand-by alert for Pueblo's mission.

After an uneventful mission to date, Pueblo was observed by a North Korea sub-chaser on 21 January 1968 in international water off Wonsan. On 23 January 1968, the Pueblo was shadowed by two North Korea fishing trawlers before being intercepted and boarded by a North Korean sub-chaser and three fast patrol boats, all outside North Korea's territorial waters.

Initial response
On the day of the Pueblo's seizure, 23 January 1968, the closest U.S. naval force was Task Group 77.5 under the command of Rear Admiral Horace H. Epes, Jr. The task group consisted of the nuclear-powered attack aircraft carrier USS Enterprise (CVAN-65) (pictured), the nuclear-powered guided-missile frigate USS Truxtun (DLGN-35), and the guided-missile frigate USS Halsey (DLG-23). Task Group 77.5 was steaming in the East China Sea en route to Yankee Station off North Vietnam. At the time of the initial alert, TG-77.5 was approximately 550 nmi from the last reported position of the Pueblo or 470 nmi from Wonsan, the nearest North Korean seaport to Pueblo.

Now re-designated Task Group 70.6, the Enterprise task group was ordered to proceed "at best speed" to the southern entrance of the Tsushima Strait, and the destroyer USS Higbee (DD-806) was ordered to Wonsan. Also, the Pueblo's sister-ship, the USS Banner (AGER-1), was ordered to suspend its intelligence-gathering mission and return to Yokosuka, Japan, immediately. A number of factors prevented an immediate response from the Enterprise's embarked Carrier Air Wing Nine of 85 aircraft. The air wing's aircraft had sustained damage from a recent typhoon and those remaining 35 operational strike aircraft had to be re-spotted on the flight deck and armed with air-to-surface ordnance. Additionally, the ship could not stage replacement aircraft through Japan due to the status of forces agreement that prohibited the combat use of U.S. military aircraft re-deployed from a neutral nation. In any case, Seventh Fleet commander Vice Admiral William F. Bringle ordered Task Group 70.6 to take "no overt action until further informed." The Higbee was also recalled from Wonsan.

On the evening of 25 January 1968, a high-altitude A-12 reconnaissance aircraft overflew Wonsan harbor and confirmed that the Pueblo was anchored there and surrounded by North Korean naval vessels (pictured). Effective that date, in conjunction with Operation Combat Fox, Operation Formation Star was initiated. Taken together, both operations represented a major surge deployment of U.S. naval and air forces into the Sea of Japan region off the eastern coast of North Korea.

Naval build-up
Operation Formation Star was the largest build-up of U.S. naval forces around the Korean Peninsula since the Korean War, being comparable to a similar naval build-up following the 1969 shoot-down of a EC-121 reconnaissance aircraft in international airspace by the North Korean Air Force.

Also, on 25 January 1968, U.S. President Lyndon B. Johnson signed Executive Order 11392 ordering certain units of the Ready Reserve of the Naval Reserve, Air Force Reserve, and Air National Guard of the United States to active duty. For the U.S. Naval Reserve, this call-up involved six naval air squadrons and two Seabee construction battalions for a total of 1621 naval reservists activated.

Likewise, on 25 January 1968, the Enterprise-led Task Group 70.6 sailed through Tsushima Strait and into the Sea of Japan. The task group would operate below 36th parallel North. Also, between 24–26 January 1968, the destroyers Higbee, USS Ozbourn (DD-846), USS Collett (DD-730), and USS O'Bannon (DD-450) joined Task Group 70.6.

On 27 January 1968, the attack aircraft carrier USS Ranger (CVA-61) (pictured) was detached from Task Force 77 at Yankee Station off North Vietnam and ordered to the Sea of Japan as part of Operation Formation Star. Likewise, the support aircraft carrier USS Yorktown (CVS-10) was ordered to forego its scheduled port-call in Japan and divert to the Sea of Japan. By 1 February 1968, Yorktown, Ranger and Enterprise were operating in the Sea of Japan as Task Force 71 under the command of Rear Admiral Horace H. Epes, Jr., with the Enterprise as his flagship. TF-71 was organized into a two-carrier strike group, a surface action group, and an anti-submarine warfare (ASW) unit centered around the Yorktown and her escorts.

Additional ASW assets for Operation Formation Star included land-based Lockheed SP-2H Neptune and Lockheed P-3A/B Orion maritime patrol aircraft from patrol squadrons VP-2, VP-17, VP-19, and VP-48. Between 24-31 January 1968, Neptune and Orion patrol aircraft flew over 50 ASW barrier patrols over the Sea of Japan and subsequently flew an additional 238 mission in February. This operational tempo placed such a burden on patrol aircraft based in Japan that additional aircraft from Okinawa and the Philippines were used to augment the barrier patrols.

Of the seventeen U.S. submarine then deployed in the Far East, nine nuclear and non-nuclear submarines were ordered to the Korean Peninsula for up to three months of operations in the Sea of Japan on 27 January 1968. Also, the return of two submarines deployed in the Far East was delayed because of the Pueblo crisis while three additional submarines were dispatched to the U.S. Seventh Fleet in response to the crisis. The GUPPY IIA Diesel-electric submarine USS Ronquil (SS-396) was specifically tasked for cover and search-and rescue operations during the Pueblo crisis.

The area air defense for Task Force 71 was greatly enhanced when the guided-missile cruiser USS Chicago (CG-11) (pictured) was detached from PIRAZ duty off Vietnam for operations in the Sea of Japan on 28 January 1968. Equipped with modernized electronic systems, an improved combat information center using the Naval Tactical Data System (NTDS), and long-range RIM-8 Talos anti-aircraft missiles, Chicago coordinated air activities for the TF-71 aircraft carriers. The USS Canberra (CAG-2) and USS Providence (CLG-6) were the other two guided-missile cruisers assigned to Task Force 71, joining the guided-missile frigates Bainbridge and Halsey.

To support Task Force 71, Task Force 73 created an underway replenishment group that included the fast combat support ship USS Sacramento (AOE-1); the fleet oilers USS Platte (AO-24) and USS Tolovana (AO-64), the combat stores ship USS Mars (AFS-1); and the ammunition ship USS Vesuvius (AE-15). To service TF-71's flotilla of destroyers, the destroyer tender USS Samuel Gompers (AD-37) was deployed to Sasebo, Japan, to service TF-71's flotilla of destroyers.

Finally, although not directly unrelated to Operation Formation Star or Task Force 71, the Republic of Korea Navy dispatched nineteen ships and two fast patrol boats to sixteen patrol zones around South Korea.
 * Task Force 71, 1968

Soviet reaction
As the Pueblo crisis unfolded, the presence of such a large U.S. naval force in the Sea of Japan prompted the Soviet Union to deploy its own warships and naval aircraft to the area in response. The USSR's Red Banner Pacific Fleet initially deployed a Kildin-class destroyer, a Kotlin-class destroyer, a Riga-class frigate, two intelligence-gathering trawlers, four fleet tankers, and a water tender in response to the U.S. naval force in the Sea of Japan. On 25 January 1968, the Enterprise-led Task Group 70.6 sailed past the Riga-class frigate and Uda-class oiler patrolling the entrance of Tsushima Strait. Later that same day, a Kashin-class destroyer began trailing TG-70.6 in the Sea of Japan. The Kotlin-class destroyer subsequently joined in shadowing the now-activated Task Force 71.

By 5 February 1968, a picket line of Soviet warships formed along the 38th parallel North that included two Kynda-class cruisers and three Kashin-class destroyers. Also, on that date, another six Soviet destroyers steamed into the Sea of Japan, as well as at least two Soviet submarines were also operating in Sea of Japan. Ultimately, the Soviet fleet commander, Admiral Nikolay N. Amelko, committed fully half of his cruiser-destroyer forces based in Vladivostok to monitor U.S. naval forces during the Pueblo crisis.

Pacific-based Soviet Naval Aviation maritime patrol bombers were also flying multiple daily missions to monitor Task Force 71. On 7 February 1968 alone, ten Tupolev Tu-16 Badger bombers approached U.S. naval forces at altitudes between 500 ft and 30000 ft. Between 23 January and 21 February 1968, the U.S. Seventh Fleet reported 14 cases of harassment by Soviet naval vessels, with the most damaging on 1 February 1968 when the U.S. destroyer USS Rowan (DD-782) and the 10,000-dwt Soviet freighter Kapitan Vislobokov punched above-the-waterline holes in their hulls during a collision.

Military options
The U.S. Pacific Command and U.S. Pacific Fleet planning staffs offered a number of military options in response to the Pueblo crisis. These options were forwarded to the U.S. Joint Chiefs of Staff and the rest of the National Command Authority apparatus while the U.S Seventh Fleet and U.S. Fifth Air Force command staffs developed contingency plans.

On Friday, 26 January 1968, an inter-agency Korea Working Group met to examine the military, diplomatic, and economic options in response to the Pueblo crisis:
 * 1) Selected air strikes on North Korea. This option involved ninety-two U.S. Navy, U.S. Air Force, and South Korean air force aircraft striking the North Korean air base at Wonsan and the naval base at Munp’yong-ni.
 * 2) Naval blockade of Wonsan. Leveraging carrier-based air cover, U.S. and possibly South Korean naval units could impose a blockade within Wonsan’s twelve-mile limit. To achieve air superiority, strikes against North Korean military airfields would “quite possibly” be required.
 * 3) Mine Wonsan Harbor. Carrier-based A-6 attack aircraft would fly seventeen sorties to drop eighty-three mines in one night, and thereafter the A-6 aircraft would “reseed” the minefield as necessary.
 * 4) Seize North Korean vessels. The option would act as retaliation in kind, seizing either a North Korean merchant vessel or a warship, and then using that vessel as a bargaining chip for the release of the Pueblo and its crew.
 * 5) Sail USS Banner into the area where Pueblo had been seized. This would demonstrate U.S. determination to exercise freedom of the seas positing the Banner a minimum of thirteen miles from the North Korean coast for eight days. Two destroyers, a cruiser, and possibly a South Korean unit would escort the Banner, and carrier aircraft would fly cover overhead. U.S. Air Force aircraft in South Korea would be on “strip alert” status for immediate readiness to take off.
 * 6) Recover cryptographic material jettisoned by Pueblo. This recovery operation involve a U.S. Navy tug and mine warfare vessels from Sasebo, Japan, plus special detection gear from the United States. Carrier-based and land-based aircraft would provide air cover. The salvage unit would only operate during daylight, and the entire operation would terminate after ten days.
 * 7) Conduct airborne reconnaissance. This option involved flying reconnaissance missions in an attempt to convince North Korea that the United States was preparing for military operations, including electronic warfare missions.
 * 8) Inform the Soviets of actual or possible military moves.  This option would use  the Soviet Union as a "back channel" to warn the North Korea against further provocations.
 * 9) Raid across the Demilitarized Zone. This option involved a combine U.S.-ROK armored force raiding a major North Korean military post near the DMZ.
 * 10) Economic pressure on North Korea. This option involved a total trade embargo on by the United States and its allies, particularly a cessation of Japanese imports from North Korea and elimination of wheat exports.

On 29 January 1968, a senior advisory panel reviewed the working group's list of options and recommended a diplomatic, not military approach for ending the Pueblo crisis.

Stand-down
Operation Formation Star placed a considerable strain on the United States Seventh Fleet's support for the Vietnam War, particularly aircraft carrier operations at Yankee Station. Two days before the capture of the Pueblo, 21 January 1968, North Vietnamese Army began its seige against Khe Sanh Combat Base near the the Vietnamese Demilitarized Zone (DMZ). Seven days after the Pueblo crisis started, the Viet Cong and North Vietnamese People's Army of Vietnam launched the Tet Offensive, a campaign of surprise attacks against military and civilian commands and control centers throughout South Vietnam. Concurrent with both events, Task Force 77's support of Operation Rolling Thunder was greatly hampered by poor weather conditions over North Vietnam.

Chief of Naval Operations Admiral Thomas H. Moorer advised the U.S. Joint Chiefs of Staff that Task Force 71 as constituted could operate up to six weeks before carriers operations off without degrading Seventh Fleet's carrier operations in Vietnam. As an interim solution, a scheduled rest and recreation period for the attack carrier USS Kitty Hawk (CVA-63) was cancelled in order to stay at Yankee Station. Also, the tour of duty for the attack carrier USS Coral Sea (CVA-43) was extended by an additional month, and extending the deployment of the attack carrier USS Oriskany (CVA-34) was also considered. With the Pueblo crisis evolving towards a diplomatic conclusion, U.S. naval operations in the Sea of Japan began to wind down.

Aftermath
Although a wide range of military options were considered, the Johnson Administration elected to resolve the Pueblo crisis diplomatically. However, the periodic rotation of U.S. aircraft carrier task forces to off the North Korean coast in the Sea of Japan provided additional leverage to American negotiators in talks to repatriate the crew of the Pueblo.