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Operation Keystone was a British special forces operation carried out by a Jeep-mounted Squadron of the 2nd Special Air Service under the command of Major Henry Carey Druce, with the objectives of interfering with German movements to the south of the IJsselmeer in the German-occupied Netherlands and capturing bridges over the Apeldoorn Canal to assist Operation Cannonshot. [1]
The Special Air Service (SAS) is a special forces unit of the British Army. It was founded as a regiment in 1941 by David Stirling, and in 1950 it was reconstituted as a corps. The unit specialises in a number of roles including counter-terrorism, hostage rescue, direct action and special reconnaissance. Much of the information about the SAS is highly classified, and the unit is not commented on by either the British government or the Ministry of Defence due to the secrecy and sensitivity of its operations.
Keystone or key-stone may refer to:
Operation Archway was the codename for one of the largest and most diverse operations carried out by the Special Air Service during the Second World War.
A keystone is the wedge-shaped stone at the apex of a masonry arch or typically round-shaped one at the apex of a vault. In both cases it is the final piece placed during construction and locks all the stones into position, allowing the arch or vault to bear weight. In arches and vaults keystones are often enlarged beyond the structural requirements and decorated. A variant in domes and crowning vaults is a lantern. A portion of the arch surrounding the keystone is called a crown.
The 28th Infantry Division ("Keystone") is a unit of the United States Army National Guard, and is the oldest division-sized unit in the Army. Some of the units of the division can trace their lineage to Benjamin Franklin's battalion, The Pennsylvania Associators (1747–1777). The division was officially established in 1879 and was later redesignated as the 28th Division in 1917, after the entry of America into the First World War. It is today part of the Pennsylvania Army National Guard, Maryland Army National Guard, Ohio Army National Guard, and New Jersey Army National Guard.
Keystone Aircraft Corporation was an early American airplane manufacturer.
Loening Aeronautical Engineering Corporation was founded 1917 by Grover Loening and Henry M. Crane produced early aircraft and amphibious aircraft beginning in 1917. When it merged with Keystone Aircraft Corporation in 1928, some of its engineers left to form Grumman. Loening formed a new enterprise, Grover Loening Aircraft Company, in 1929, which closed in 1933.
TC Energy Corporation is a major North American energy company, based in the TC Energy Tower building in Calgary, Alberta, Canada, that develops and operates energy infrastructure in Canada, the United States, and Mexico. The company operates three core businesses: Natural Gas Pipelines, Liquids Pipelines and Energy.
The Black Hills Central Railroad is a heritage railroad that operates in Keystone, South Dakota, United States. The railroad was added to the National Register of Historic Places on February 5, 2003.
The Lakehead Junior Hockey League (LJHL) is a Canadian Junior ice hockey league in Northwestern Ontario, sanctioned by Hockey Northwestern Ontario and Hockey Canada. An earlier edition of this league existed in the 1970s.
The Philadelphia Keystones were a professional baseball franchise. In 1884, they were a member of the short-lived Union Association. The team was owned by former player Tom Pratt.
The Keystone View Company was a major distributor of stereographic images, and was located in Meadville, Pennsylvania. From 1892 through 1963 Keystone produced and distributed both educational and comic/sentimental stereoviews, and stereoscopes. By 1905 it was the world's largest stereographic company. In 1963 Department A and the Education Departments were closed down, but Keystone continued to manufacture eye-training stereographic products as a subsidiary of Mast Development Company. In 1972 Mast closed the Meadville manufacturing site.
The Keystone Pipeline System is an oil pipeline system in Canada and the United States, commissioned in 2010 and owned by TC Energy and, as of March 2020, the Government of Alberta. It runs from the Western Canadian Sedimentary Basin in Alberta to refineries in Illinois and Texas, and also to oil tank farms and an oil pipeline distribution center in Cushing, Oklahoma.
The Swiss Telegraphic Agency is the national press agency of Switzerland, founded in 1894. In 2017, it merged with the Swiss picture agency Keystone.
The 20th Bomb Squadron is a unit of the 2d Operations Group of the United States Air Force located at Barksdale Air Force Base, Louisiana. The 20th is equipped with the Boeing B-52H Stratofortress.
Keystone Heights Airport, is a public use airport located 3 miles north of Keystone Heights, Florida in Clay and Bradford counties.
Etta, also known as Etta Camp and Etta Mine, is a ghost town in Pennington County, South Dakota, United States. It was a successful mining town, known for its discovery of the largest spodumene crystal ever found.
Darragh is an unincorporated community in Hempfield Township, Westmoreland County, Pennsylvania, United States. Originally a coal town, the community is located along Pennsylvania Route 136, 1 mile (1.6 km) west of Arona. Darragh has a post office, with ZIP code 15625, which opened on July 21, 1892.
Operation Keystone Cardinal was the withdrawal of the 3rd Marine Division from South Vietnam, taking place from 30 September to 27 November 1969.