A crime ridden area or hood known for its crimes and violence. addPrebidAdUnits(pbAdUnits); 2. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, Half of the subplots were randomly selected and trenched, the others remained untrenched. expires: 60 A long narrow ditch embanked with its own soil and used for concealment and protection in warfare. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776336', position: 'btf' }}, Soldiers in the Trenches: World War One. if(success && (tcData.eventStatus === 'useractioncomplete' || tcData.eventStatus === 'tcloaded')) { Some wrote down for posterity what these experiences were and as time has moved on from World War One more and more of these written documents – frequently in the form of a diary – have come to … googletag.pubads().setTargeting("cdo_ptl", "entry-lcp"); "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, The first descent to the bottom of the Mariana Trench took place on January 23, 1960. { { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, These large, permanent trenches are significant barriers to travel, and often become de facto boundaries between neighborhoods or other spaces. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, Can you spell these 10 commonly misspelled words? Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Assaults were carried out across "No Man's Land" between the opposing trenches. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } },

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In the conflict in the Donets Basin (2014– ), the relatively static contact line between Ukrainian government troops and Russian-backed forces led to the establishment of a system of trenches that covered much of the 250-mile (400-km) front. { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, "error": true, Jacques Piccard, codesigner of the bathyscaphe Trieste, and his assistants departing on the vehicle's first deep dive in the Mariana Trench, November 1959; off Guam, the bathyscaphe dove to 18,600 feet (5,670 metres).

ga('send', 'pageview'); Add trench to one of your lists below, or create a new one. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, Later, on January 23, 1960, the Trieste—with Piccard (who had helped his father, Auguste Piccard, design the bathyscaphe) and U.S. naval officer Don Walsh aboard—made a record dive to 35,814 feet (10,916 metres) in Challenger Deep. 'cap': true bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, An arcing … { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, var mapping_topslot_a = googletag.sizeMapping().addSize([746, 0], []).addSize([0, 550], [[300, 250]]).addSize([0, 0], [[300, 50], [320, 50], [320, 100]]).build(); storage: { }, { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, A similar use for higher bulk would be in pipeline transport.

That sounding was not exceeded until a 32,197-foot (9,813-metre) hole was found in the vicinity 30 years later. Trenches provided protection from bullets and shells, but they did carry their own risks. enableSendAllBids: false, As World War I progressed, both sides, but particularly the Germans, developed trench systems of progressively greater depth and strength in order to ensure that the enemy could not achieve a breakthrough at any particular point. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, His first trenches were in the lakebed and produced almost no material. var pbDesktopSlots = [

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British troops in a trench on the Western Front during World War I. French machine-gun position in the trenches on the Western Front during World War I. {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, }); iasLog("criterion : cdo_pt = entry"); "loggedIn": false

{ bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, { bidder: 'openx', params: { unit: '541042770', delDomain: 'idm-d.openx.net' }}, { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, Life in Ocean Trenches. Usage explanations of natural written and spoken English, 0 && stateHdr.searchDesk ?

This article was most recently revised and updated by, Petersburg–Richmond theatre of operations, trench warfare - Student Encyclopedia (Ages 11 and up). { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; googletag.pubads().setTargeting("cdo_t", "building-and-engineering"); const customGranularity = { The advantages of utility tunnels are the reduction of maintenance manholes, one-time relocation, and less excavation and repair, compared with separate cable ducts for each service. { bidder: 'sovrn', params: { tagid: '387232' }}, [4], Code of Federal Regulations, Title 29, Volume 8, Page 374, Centers for Disease Control and Prevention, https://en.wikipedia.org/w/index.php?title=Trench&oldid=945428859, Creative Commons Attribution-ShareAlike License, This page was last edited on 13 March 2020, at 22:29. Throughout most of World War I, the opposing armies on the Western Front tried to break through the enemy’s trench system by mounting infantry assaults preceded by intense artillery bombardments of the defending trenches. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, Vauban, pastel by Charles Le Brun; in the Bibliothèque de Génie, Paris.

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