WhenApabila [[Adolf Hitler|Hitler]] decidedmemutuskan tountuk incorporatemenggabungkan Czechoslovakia intoke hisdalam [[NaziJerman GermanyNazi|Third Reich Ketiga]], hebeliau used amenggunakan Casus Belli calledyang dipanggil ''[[Lebensraum]]''. ThisSecara means,tidak roughlytepat, ini bermaksud "roomruang foruntuk livinghidup",anddan wasberdasarkan basedkeadaan on Germany'sJerman pooryang conditionteruk afterselepas [[WorldPerang WarDunia I|WWI]],whereyang thediakibatkan victoriousoleh Alliestuntutan hadPihak demandedBerikat ofterhadap Germanyganti largerugi paymentskerosakan inperang. reparations,Apabila soAmerika thatSyarikat whenmenarik thebalik USpinjaman withdrew loans provided tokepada [[Republik Weimar Republic]], causedlargelyakibat bysebahagian thebesarnya oleh [[Keruntuhan Wall Street Crash of 1929|Keruntuhan Wall Street Crash]], Germany'sekonomi economyJerman collapsedruntuh. BecauseOleh ofitu, thisJerman Germanydalam waskeadaan inkrisis aketika state of crisis whenkebangkitan Hitler rose to power, anddan hisrancangan planbeliau wasuntuk thatmembina ifekonomi hedan could[[infrastruktur]] expandJerman toadalah areasuntuk withmemperluas manysempadan resources,negaranya heke couldkawasan-kawasan buildyang upmempunyai Germany'sbanyak economicsumber. stateSebagai andganti [[infrastructure]].untuk Insteadmenawan oftanah-tanah capturingjajahan coloniesdi outsideluar EuropeEropah, Hitler claimedmendakwa thatbahawa hebeliau neededmemerlukan resourcessumber-sumber closeyang toberhampiran him,supaya sodapat hemembina couldJerman builddengan Germany up fastcepat. ToUntuk helpmenyokong justifyjustifikasinya, thisbeliau hejuga alsomendakwa claimedbahawa thatbeliau hehanya wasmenyatukan merelysemula reunitingnegara Germany,Jerman sincekerana mostkebanyakan ofkawasan theyang areasditawan hemerupakan capturedbekas hadkawasan formerly belonged to GermanyJerman (anddan hadmempunyai Germanorang-speakingorang yang peoplebertutur livingdalam inbahasa themJerman).
The use of such aPenggunaan casus belli wassebegini wellamat suitedsesuai todengan thekeadaan economicekonomi anddan politicalpolitik situationketika initu. EuropeBritain atyang themasih time.letih Britain,daripada stillPerang exhaustedDunia fromI WWI,bertindak reactedbalas toterhadap hisdakwaan-dakwaan claimsJerman bydengan followingmengikut a policy ofdasar [[Appeasementpenenangan]]. WillingSanggup tomembuat makepengorbanan-pengorbanan significantyang sacrificesutama tountuk avoidmengelakkan anotherlagi warsebuah peperangan, Britain didtidak notmenghentikan stopJerman theapabila Germansmereka whenmemulakan theypenenteraan startedsemula todan remilitarize and expandpeluasan. FrancePerancis wastidak unenthusiasticminat aboutakan thedasar appeasement policypenenangan, buttetapi wastidak notsanggup willingberperang to go to war alonebersendirian. [http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB132/essay.htm]
The official casusCasus belli ofrasmi theKesatuan Soviet Unionuntuk for attackingmenyerang Finland in thedalam [[WinterPerang Musim WarSejuk]] was theialah [[shelling ofpengeboman Mainila]]. ThePihak SovietsSoviet claimedmenuntut Finnishbahawa troopsaskar-askar hadFinland shelledtelah themenembak villagedesa of Mainila ondi thewilayah USSRKesatuan territorySoviet dengan meriam. InvestigationsPenyelidikan havekemudian revealedmendedahkan laterbahawa thattidak noterdapat Finnishsebarang artillerymeriam Finland batteriesyang wereberhampiran intempat rangeitu. The shots the Finnish sentries heard allow triangulation of the position of the battery, which was on the Soviet side. The reality was, that the Soviets had fired the shells over Finnish territory to their own territory. The losses the Soviets reported were forged.
