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1、WorldWarIBegins MainIdeaAsWorldWarIintensified theU S wasforcedtoabandonitsneutralityWhyitMattersNowTheU S remainsinvolvedinEuropeanandworldaffairs AnAssassinationLeadstoWar ThepowderkegofEurope BalkanPeninsulaKeyIssues RussiawantedaccesstotheMediterraneanSeaGermanywantedaraillinktotheOttomanEmpireA
2、ustria HungaryaccusedSerbiaofsubvertingitsruleoverBosnia AnAssassinationLeadstoWar June1914 ArchdukeFranzFerdinand heirtotheAustrianthroneisassassinatedGavriloPrincip memberoftheBlackHand promotedSerbiannationalism Thealliancesystempulledonenationafteranotherintoconflict August3 1914 TheGreatWarbega
3、n TheFightingStarts August3 1914 GermanyinvadedBelgium SchlieffenPlan PlancalledforaholdingactionagainstRussia combinedw aquickdrivethroughBelgiumtoParis OnceFrancehadfallen GermanarmieswoulddefeatRussia FightingStarts Alliescouldn tsaveBelgiumandretreatedtotheMarneRiverinFrance TrenchWarfare 3Maink
4、indsoftrenchesFrontlineSupportReserve Noman sland spacebetweenthebarbedwire HorrificBattlesBattleofSomme July1 1916 60 000Britishcasualtiesonthe1stdayalone 1 2millionintheend AmericansQuestionNeutrality 1914 Americanssawnoreasontojoinastruggle3 000milesaway DividedLoyaltyManyAmericanswerefromsomewhe
5、reinEuropeSomeAmericansfeltclosertoGreatBritainbecauseofancestry Germany thebullyofEurope EconomicTieswithAllies AmericantradewithBritain Francedoubled AlliesfloodedAmericanmanufacturerswithordersforwarsupplies TradewithGermanydroppedByhowmuchdidtotalU S exportstoEuroperiseorfallbetween1914 1917 Wha
6、ttrendsdoesthegraphshowbeforethestartofthewar andduringthewar TheWarHitsHome AlthoughthemajorityofAmericansfavoredvictoryfortheAlliesratherthantheCentralPowers theydidnotwanttojointheAllies fight TworeasonsAmericajoinedthefighting EnsurepaymentsofdebtsPreventtheGermansfromthreateningU S shipping The
7、UnitedStatesDeclaresWar Aftertheelection Wilsontriedtomediatebetweenthewarringalliances PeacewithoutVictory GermanProvocationJan 31 1917 GermanyorderedtosinkallshipsinBritishwatersZimmermanTelegram letterfromGermanforeignministertotheGermanAmbassadortoMexico AmericaActsApril2 1917 Congresspassesther
8、esolutionafewdaylatertoenterthewar Maketheworld SafeforDemocracy WorldWarIBeginsReview WhatwerethemainreasonsforU S involvementinthewar EconomictieswerestrongerwithAlliesthantheywerewiththeCentralPowers Germany sU boatattacksandtheZimmermanTelegram WheredidGermanybeginitswaroffensive andwhathappened
9、there GermanyinvadedBelgium creatingarefugeecrisis AmericanPowerTipstheBalance MainIdeaTheU S mobilizedalargearmyandnavytohelptheAlliesachievevictory WhyitMattersTodayDuringWWI theU S militaryevolvedintothepowerfulfightingforcethatitremainstoday OneAmerican sStory EddieRickenbacker famouspilotofWWI
10、wasawellknownracecardriverbeforethewar AmericaMobilizes TheU S wasn tpreparedforwar Only200 000menwhereinservicewhenwarwasdeclared SelectiveServiceAct 1917 Nopersonliabletomilitaryserviceshallhereafterbepermittedorallowedtofurnishasubstituteforsuchservice norshallanysubstitutebereceived enlisted ore
11、nrolledinthemilitaryserviceoftheUnitedStates andnosuchpersonshallbepermittedtoescapesuchserviceortobedischargedtherefrompriortotheexpirationofhistermofservicebythepaymentofmoneyoranyothervaluablethingwhatsoeverasconsiderationhisreleasefrommilitaryserviceorliabilitythereto AmericaTurnstheTide U boata
12、ttacksonmerchantshipswereaseriousthreattotheAllies AmericanViceAdmiralWilliamS Sims convincedtheBritishtotrytheconvoysystem AheavyguardofdestroyerswouldescortmerchantshipsacrosstheAtlantic U S helpedlaya230milebarrierofminesacrosstheNorthSeafromScotlandtoNorway AmericaTurnstheTide FightinginEuropeAl
13、liesweredemoralizedAmericansbroughtfreshnessandenthusiasm Fighting OverThere AmericanExpeditionaryForce AEF Gen JohnJ Pershing Doughboys Americaninfantrymen TheWarIntroducesNewHazards ThenewweaponsandtacticsofWWIledtohorrificinjuriesandhazards Meuse ArgonneOffensive TheMeuse ArgonneOffensive alsocal
14、ledtheBattleoftheArgonneForest wasapartofthefinalAlliedoffensiveofWorldWarI andknownastheGrandOffensive thatstretchedalongtheentirewesternfront OnSeptember26 theAmericans thefirsttomove begantheirstriketowardsSedaninthesouth U S smashestheGermanwilltocontinueahopelessfight ThemainUSeffortoftheoffens
15、ivetookplaceintheVerdunSector immediatelynorthandnorthwestofthetownofVerdun betweenSeptember26 November11 1918 ThebigSeptember OctoberAlliedbreakthroughs north centreandsouth acrossthelengthoftheHindenburgLine includingtheBattleoftheArgonneForest arenowlumpedtogetheraspartofwhatisgenerallyremembered
16、asthehugeHundredDaysOffensivebytheAllies AmericanTroopsGoontheOffensive Russianpullsoutin1917 Germanyshiftedtheirarmiestothewesternfront AmericansarrivedjustintimeastheGermanarmywasjust50milesfromParis TotalCostofWWI CasualtiesandlossesMilitarydead 5 525 000Militarywounded 12 831 500Militarymissing 4 121 000 1 furtherdetails Militarydead 4 386 000Militarywounded 8 388 000Militarymissing 3 629 000 TotalLossesbyCountry Britain 750 000soldierskilled 1 500 000woundedFrance 1 400 000soldierskilled 2
