1951 – Operation RIPPER was launched in the central and eastern sectors as IX and X Corps crossed the Han River east of Seoul. Operation Ripper, also known as the Fourth Battle of Seoul, was a United Nations military operation conceived by the commander US Eighth Army, General Matthew Ridgway. The operation was intended to destroy as much as possible of the Chinese communist People’s Volunteer Army and North Korean military around Seoul and the towns of Hongch’on, 50 miles (80 km) east of Seoul, and Ch’unch’on, 15 miles (24 km) further north. The operation also aimed to bring UN troops to the 38th parallel. It followed upon the heels of Operation Killer, an eight day UN offensive that concluded February 28, to push Communist forces north of the Han River. The operation was launched by the US I Corps and IX Corps on the west near Seoul and Hoengsong and US X Corps and ROK III Corps in the east, to reach “Line Idaho”, an arc with its apex just south of the 38th Parallel in South Korea.
1952 – The U.S. signed a military aid pact with Cuba.
1956 – President Eisenhower turns down a request by Israel to purchase military arms from the United States. It comes after the Soviet Union has provided military equipment to Egypt.
1958 – Commissioning of USS Grayback, first submarine built from keel up with guided missile capability, to fire Regulus II missile.
1966 – In the heaviest air raids since the bombing began in February 1965, U.S. Air Force and Navy planes fly an estimated 200 sorties against North Vietnam. The objectives of the raids included an oil storage area 60 miles southeast of Dien Bien Phu and a staging area 60 miles northwest of Vinh.
1966 – Department of Navy reorganized into present structure under CNO.
1967 – PBRs assists Operation Overload II in Rung Sat Zone, Vietnam.
1968 – The Battle of Saigon, begun on the day of the Tet Offensive, ends in a resounding defeat for the communists.
1968 – Operation Coronado XII begins in Mekong Delta, Vietnam.
1971 – A thousand U.S. planes bombed Cambodia and Laos.
1972 – In the biggest air battle in Southeast Asia in three years, U.S. jets battle five North Vietnamese MiGs and shoot one down 170 miles north of the Demilitarized Zone. The 86 U.S. air raids over North Vietnam in the first two months of this year equaled the total for all of 1971.
1974 – The Civil War ironclad ship, Monitor, which sank in 1862, is discovered off the coast of Hatteras, North Carolina. For more than a century, the Monitor’s resting place in the “Graveyard of the Atlantic” remained a mystery, despite numerous searches. In 1973, an interdisciplinary team of scientists led by John G. Newton of the Duke University Marine Laboratory located the Monitor while testing geological survey equipment for underwater archaeological survey and assessment. Newton’s team determined the search area by re-plotting the track of the USS Rhode Island, a paddlewheel steamer that was towing the Monitor when she sank on New Year’s Eve, 1862.
The Rhode Island’s logbook recorded events and times as the two ships rounded treacherous Diamond Shoals off Cape Hatteras, North Carolina. An 1857 coast survey chart helped refine the plotting of the search area. The scientists also developed sonar and visual configurations for the wreck with specific points of identification: the ship’s turret, armor belt, and nearly flat bottom. On August 27, 1973, after identifying twenty-one possible contacts, side-searching sonar found a long, amorphous echo. The first pass of the television camera revealed iron plates; a virtually flat, unobstructed surface (the bottom of the hull); a thick waist (the armor belt); and a circular structure (the turret).
With each successive series of camera passes, evidence mounted that the wreck was that of the Monitor, but it would take an intensive study of the visual evidence over the next five months to confirm it. A second visit to the site in April 1974 will positively identify the Monitor, lying in approximately 230 feet of water about 16 miles south-southeast of Cape Hatteras.
1979 – Voyager 1 reached Jupiter.
1980 – Demonstrations occur outside U.S. embassy in Tehran in protest of plan to turn American hostages over to Iranian Revolutionary Council; Foreign Minister Sadegh Ghotbzadeh reportedly taking charge of hostages tomorrow.
1981 – Anti-government guerrillas in Colombia executed kidnapped American Bible translator Chester Allen Bitterman, whom they accused of being a CIA agent.
1986 – Divers from the USS Preserver locate the crew cabin of the Space Shuttle Challenger on the ocean floor.
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1952 – The U.S. signed a military aid pact with Cuba.
1956 – President Eisenhower turns down a request by Israel to purchase military arms from the United States. It comes after the Soviet Union has provided military equipment to Egypt.
1958 – Commissioning of USS Grayback, first submarine built from keel up with guided missile capability, to fire Regulus II missile.
1966 – In the heaviest air raids since the bombing began in February 1965, U.S. Air Force and Navy planes fly an estimated 200 sorties against North Vietnam. The objectives of the raids included an oil storage area 60 miles southeast of Dien Bien Phu and a staging area 60 miles northwest of Vinh.
1966 – Department of Navy reorganized into present structure under CNO.
1967 – PBRs assists Operation Overload II in Rung Sat Zone, Vietnam.
1968 – The Battle of Saigon, begun on the day of the Tet Offensive, ends in a resounding defeat for the communists.
1968 – Operation Coronado XII begins in Mekong Delta, Vietnam.
1971 – A thousand U.S. planes bombed Cambodia and Laos.
1972 – In the biggest air battle in Southeast Asia in three years, U.S. jets battle five North Vietnamese MiGs and shoot one down 170 miles north of the Demilitarized Zone. The 86 U.S. air raids over North Vietnam in the first two months of this year equaled the total for all of 1971.
1974 – The Civil War ironclad ship, Monitor, which sank in 1862, is discovered off the coast of Hatteras, North Carolina. For more than a century, the Monitor’s resting place in the “Graveyard of the Atlantic” remained a mystery, despite numerous searches. In 1973, an interdisciplinary team of scientists led by John G. Newton of the Duke University Marine Laboratory located the Monitor while testing geological survey equipment for underwater archaeological survey and assessment. Newton’s team determined the search area by re-plotting the track of the USS Rhode Island, a paddlewheel steamer that was towing the Monitor when she sank on New Year’s Eve, 1862.
The Rhode Island’s logbook recorded events and times as the two ships rounded treacherous Diamond Shoals off Cape Hatteras, North Carolina. An 1857 coast survey chart helped refine the plotting of the search area. The scientists also developed sonar and visual configurations for the wreck with specific points of identification: the ship’s turret, armor belt, and nearly flat bottom. On August 27, 1973, after identifying twenty-one possible contacts, side-searching sonar found a long, amorphous echo. The first pass of the television camera revealed iron plates; a virtually flat, unobstructed surface (the bottom of the hull); a thick waist (the armor belt); and a circular structure (the turret).
With each successive series of camera passes, evidence mounted that the wreck was that of the Monitor, but it would take an intensive study of the visual evidence over the next five months to confirm it. A second visit to the site in April 1974 will positively identify the Monitor, lying in approximately 230 feet of water about 16 miles south-southeast of Cape Hatteras.
1979 – Voyager 1 reached Jupiter.
1980 – Demonstrations occur outside U.S. embassy in Tehran in protest of plan to turn American hostages over to Iranian Revolutionary Council; Foreign Minister Sadegh Ghotbzadeh reportedly taking charge of hostages tomorrow.
1981 – Anti-government guerrillas in Colombia executed kidnapped American Bible translator Chester Allen Bitterman, whom they accused of being a CIA agent.
1986 – Divers from the USS Preserver locate the crew cabin of the Space Shuttle Challenger on the ocean floor.
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