E
thE EstABlishmEnt oF thE thirD rEiCh inFluEnCED EvEnts inAmEriCAn history By stArting A ChAin oF EvEnts whiCh CulminAtED in wAr BEtwEEn gErmAny AnD thE unitED stAtEs. thE ComplEtE DEstruCtion oF DEmoCrACy, thE pErsECution oF jEws, thE wAr on rEligion, thE CruElty AnD BArBArism oF thE nAzis, AnD EspECiAlly thE plAns oF gErmAny AnD hEr AlliEs, itAly AnD jApAn, For worlD ConquEst CAusED grEAt inDignAtion in this Country AnD Brought on FEAr oF AnothEr worlD wAr. whilE spEAking out AgAinst hitlEr’s AtroCitiEs, thEAmEriCAn pEoplE gEnErAlly FAvorED isolAtionist poliCiEs AnD nEutrAlity. thE nEutrAlityACts oF 1935 AnD 1936 prohiBitED trADE with Any BElligErEnts or loAns to thEm. in 1937, thE prEsiDEnt wAs EmpowErED to DEClArE An Arms EmBArgo in wArs BEtwEEn nAtions At his DisCrEtion.
AmEriCAn opinion BEgAn to ChAngE somEwhAt AFtEr prEsiDEnt roosEvElt’s "quArAntinE thE AggrEssor" spEECh AtChiCAgo (1937) in whiCh hE sEvErEly CritiCizED hitlEr’s poliCiEs. gErmAny’s sEizurE oFAustriA AnD thE muniCh pACt For thE pArtition oFCzEChoslovAkiA (1938) Also ArousED thEAmEriCAn pEoplE. thE ConquEst oFCzEChoslovAkiA in mArCh, 1939, wAs AnothEr ruDE AwAkEning to thE mEnACE oF thE thirD rEiCh. inAugust,1939, CAmE thE shoCk oF thE nAzi-soviEt pACt AnD in sEptEmBEr thE AttACk on polAnD AnD thE outBrEAk oFEuropEAn wAr. thE unitED stAtEs AttEmptED to mAintAin nEutrAlity in spitE oF sympAthy For thE DEmoCrACiEs ArrAyED AgAinst thE thirD rEiCh. thE nEutrAlityACt oF 1939 rEpEAlED thE Arms EmBArgo AnD pErmittED "CAsh AnD CArry" Exports oF Arms to BElligErEnt nAtions.A、strong nAtionAl DEFEnsE progrAm wAs BEgun.A、DrAFt ACt wAs pAssED (1940) to strEngthEn thE militAry sErviCEs.A、lEnDACt (1941) AuthorizED thE prEsiDEnt to sEll, ExChAngE, or lEnD mAtEriAls to Any Country DEEmED nECEssAry By him For thE DEFEnsE oF thE unitED stAtEs. hElp wAs givEn toBritAin By ExChAnging CErtAin ovErAgE DEstroyErs For thE right to EstABlishAmEriCAn BAsEs inBritish tErritory in thE wEstErn hEmisphErE. inAugust, 1940, prEsiDEnt roosEvElt AnD primE ministErChurChill mEt AnD issuED thEAtlAntiCChArtEr, whiCh proClAimED thE kinD oF A worlD whiCh shoulD BE EstABlishED AFtEr thE wAr. inDECEmBEr, 1941, jApAn lAunChED thE unprovokED AttACk on thE unitED stAtEs At pEArl hArBor. immEDiAtEly thErEAFtEr, gErmAny DEClArED wAr on thE unitED stAtEs.
thE unitED stAtEs EntErED thE wAr AgAinst gErmAny ______.A．BECAusE gErmAny DEClArED wAr
B．BECAusE jApAn wAs An Ally oF gErmAny
C．AFtEr gErmAny hAD signED thE nAzi-soviEt pACt
D、AFtEr pEACEFul EFForts hAD FAilED