paragraph_text: Enterprise Lake is a lake in Wisconsin, United States. It has a maximum depth of . Part of its shoreline, and only island, belongs to Camp Mach-Kin-O-Siew.

paragraph_text: The Queen's Own Hussars, normally referred to by the abbreviation QOH, was a cavalry regiment of the British Army, formed from the amalgamation of the 3rd The King's Own Hussars and the 7th Queen's Own Hussars at Candahar Barracks, Tidworth in 1958. The regiment served in Aden and Northern Ireland and as part of the British Army of the Rhine. The regiment was amalgamated with the Queen's Royal Irish Hussars to form the Queen's Royal Hussars on 1 September 1993.

paragraph_text: The Falkland Islands has officially used Falkland Islands Standard Time (UTC−3) all year round since 5 September 2010. However, many residents of Camp use UTC−4, known on the Falklands as "Camp Time" (as opposed to "Stanley time" or "Government clocks").

paragraph_text: In 1091, Roger invaded Malta and subdued the walled city of Mdina. He imposed taxes on the islands, but allowed the Arab governors to continue their rule. In 1127 Roger II abolished the Muslim government, replacing it with Norman officials. Under Norman rule, the Arabic spoken by the Greek Christian islanders for centuries of Muslim domination became Maltese.

paragraph_text: Camp Sheppard is a former American Civil War-era training camp that existed in the 1860s in Arlington, Massachusetts on Winter Island.

paragraph_text: Jedediah Island Marine Provincial Park is a provincial park in British Columbia, Canada. It is an island that is in size. Anyone is free to camp on Jedediah island; however, it is only accessible by boat. The nearest access is from Lasqueti Island.

paragraph_text: Camp W. G. Williams, commonly known as Camp Williams, also known as Army Garrison Camp Williams, is a National Guard training site operated by the Utah National Guard. It is located south of Bluffdale, west of Lehi, and north of Saratoga Springs and Cedar Fort, approximately south of Salt Lake City, straddling the border between Salt Lake County and Utah County in the western portion of the Traverse Mountains. Camp Williams is also home to the Non-Commissioned Officer's Basic Leader Course, which is taught to Active, National Guard, and Reserve components.

paragraph_text: The Hogg Islands are a group of small islands lying south of Kamelen Island in the northern part of the Stanton Group, Antarctica. These small islands were mapped from air photos taken by the Lars Christensen Expedition, 1936–37, and later by Australian National Antarctic Research Expeditions (ANARE). They were visited in 1969 by an ANARE dog-sledge party to the Taylor Glacier area. The islands were named by the Antarctic Names Committee of Australia for Dr. J. Hogg, medical officer at Mawson Station in 1969. The central island in the group affords the best camp site in the area.

paragraph_text: The Terra Firma Islands are a small group of islands lying north of Cape Berteaux, off the west coast of Graham Land in West Antarctica. Roughly surveyed by the British Graham Land Expedition (BGLE) in 1936. The name "Terra Firma Island" was applied to the largest island (Alamode Island, q.v.), because a BGLE depot-laying party camped there following the break-up of sea ice, but the name Terra Firma Islands was later applied to the whole group. They include Dumbbell Island.

paragraph_text: The Guantanamo Bay detention camp is a United States military prison located within Guantanamo Bay Naval Base, also referred to as Guantánamo or GTMO (/ ˈɡɪtmoʊ /), which is on the coast of Guantánamo Bay in Cuba. Since the inmates have been detained indefinitely without trial and several detainees have alleged torture, the operations of this camp are considered to be a major breach of human rights by Amnesty International.

paragraph_text: The Soviet invasion of Poland was a Soviet military operation that started without a formal declaration of war on 17 September 1939. On that morning, 16 days after Germany invaded Poland from the west, the Soviet Union invaded Poland from the east. Subsequent military operations lasted for the following 20 days and ended on 6 October 1939 with the two - way division and annexation of the entire territory of the Second Polish Republic by both Germany and the Soviet Union. The joint German - Soviet invasion of Poland was secretly agreed to following the signing of the Molotov - Ribbentrop Pact on 23 August 1939.

paragraph_text: Douglas M. Stone is a Major General, United States Marine Forces Reserve, Retired. He relinquished in 2008 the position of Deputy Commanding General, Detainee Operations, Multi-National Force-Iraq and Commander, Task Force 134, commanding all detention operations at Camp Cropper, Camp Bucca and Camp Ashraf. He was nominated for Lieutenant General and was to be head of Marine Forces Reserve and Marine Forces North.

paragraph_text: Camp Tarawa was a training camp located on the big island of Hawaii constructed and used by the 2nd Marine Division during World War II. The grounds of the camp were situated between the volcanic peaks of Mauna Kea and Mauna Loa. Marines were sent straight from the bloody Battle of Tarawa to the campsite, which they had to build themselves. It was well known for its harsh and dusty conditions by Marines who trained there. After the 2d Marine Division left for Saipan, the 5th Marine Division moved into the base and trained for the Battle of Iwo Jima. The base was closed for good in November 1945.

paragraph_text: Stalag XVIII-D (also known as Stalag 306) was a German Prisoner of War camp at Maribor (German: Marburg an der Drau) in what is now Slovenia. It opened in the spring or early summer of 1941, operating until the end of the war.

paragraph_text: There are also parks on two major islands in the river: Belle Isle and Brown's Island. Belle Isle, at various former times a Powhatan fishing village, colonial-era horse race track, and Civil War prison camp, is the larger of the two, and contains many bike trails as well as a small cliff that is used for rock climbing instruction. One can walk the island and still see many of the remains of the Civil War prison camp, such as an arms storage room and a gun emplacement that was used to quell prisoner riots. Brown's Island is a smaller island and a popular venue of a large number of free outdoor concerts and festivals in the spring and summer, such as the weekly Friday Cheers concert series or the James River Beer and Seafood Festival.

paragraph_text: Camp Byers () is a Spanish seasonal base camp on Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The locality is also designated for use as an International Field Camp (). When necessary for scientific research purposes, temporary camping is allowed elsewhere on the protected peninsula under certain conditions.

paragraph_text: Other trees of note include the royal palm, sea grape trees in the form of shrubs on the beaches and as 5 to 7 m trees in the interior areas of the island, aloe or aloe vera (brought from the Mediterranean), the night blooming cereus, mamillaria nivosa, yellow prickly pear or barbary fig which was planted as barbed wire defences against invading British army in 1773, Mexican cactus, stapelia gigantea, golden trumpet or yellow bell which was originally from South America, bougainvillea and others.

paragraph_text: The Rocky Island Historic District is a historic district in the Apostle Islands in Ashland County, Wisconsin. It is composed of the Hadland, Benson, Edwards, Nelson, and Erickson fish camps, which were located on the eastern shore of Rocky Island. The district represents the historical significance of commercial fishing on Lake Superior, which was primarily conducted by Scandinavian immigrants. The Rocky Island Historic District was added to the National Register of Historic Places on July 3, 2008.

paragraph_text: The Lost Canyon Cowboy Camp was a line camp operated by the Scorup-Sommerville Cattle Company in what would become Canyonlands National Park, Utah. There is little built structure; the site is significant for its "in situ" artifacts and graffiti, located beneath a rock overhang. The shelter was used from 1919 through the late 1960s when the park was established.

paragraph_text: In total, French losses were 12 ships captured or destroyed and over 2,000 men drowned. The Brest fleet was so badly damaged by the operation that they launched no major operations during 1797 and were unable to respond when the British fleet was paralysed by the Spithead Mutiny a few months later. A second French attempt to invade Ireland was launched in the summer of 1798, in response to the Irish Rebellion, but this too ended in disaster: all of the men landed were captured a few weeks later at the Battle of Ballinamuck. A third and final invasion effort was defeated and destroyed by a British squadron at the Battle of Tory Island in October 1798.

Question: When did the operator of Tidworth Camp invade the island?
Answer: 1773