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the Germans 's naval strategyresultedin unrestricted submarine warfare
DiversdiscoverWorld War One Submarine
SurveyorsDiscoverWorld War One Submarine
German U - boats and Japanese forcesseton unrestricted submarine warfare
to squeeze the Allies into submission(passive) was designedUnrestricted submarine warfare
ArcheologistsdiscoverWWI submarine
Iron Wolf Studio(passive) designed byWW2 submarine warfare
the eventsledthe United States to enter World War I. unrestricted submarine warfare
a major reasonleadingto unrestricted submarine warfare
in the sinking of american ships start your 48-hour free trial to unlock this answer and thousands moreresultedin the sinking of american ships start your 48-hour free trial to unlock this answer and thousands more
to dire Admiralty predictions that submarines would defeat Britain by November,[37leadingto dire Admiralty predictions that submarines would defeat Britain by November,[37
to the United States being drawn into the war and the British launched more costly attacks on the western frontledto the United States being drawn into the war and the British launched more costly attacks on the western front
the United States to declare war on 6 April and failed to isolate Britain from its overseas sources of supplycausedthe United States to declare war on 6 April and failed to isolate Britain from its overseas sources of supply
de United States to decware war on 6 Apriw and faiwed to isowate Britain from its overseas sources of suppwycausedde United States to decware war on 6 Apriw and faiwed to isowate Britain from its overseas sources of suppwy
many civilian deaths , including American passengers on British shipscausedmany civilian deaths , including American passengers on British ships
most famously to the sinking of the Lusitania in May 1915ledmost famously to the sinking of the Lusitania in May 1915
in the death of U.S. citizens on the high seasresultedin the death of U.S. citizens on the high seas
to heavy merchant navy losses andledto heavy merchant navy losses and
in the sinking Lusitania and the loss of 153 American livesresultedin the sinking Lusitania and the loss of 153 American lives
a shortage of tankerscauseda shortage of tankers
in from 1917setin from 1917
food prices to rise andhad causedfood prices to rise and
to an increase in the research , development , and use of the submarinealso ledto an increase in the research , development , and use of the submarine