John F. Kennedy believe that no matter others will do to them they will keep going no matter if "well or ill, that we shall pay any price, bear any burden" they will keep moving forward. If Americans United they will make a difference and be stronger but if they are separated they can not improve as what they wished for. He believe on "defending freedom" That everyone can make a change for their country.
The one that was a factor in the U.S entry in world war I was :
B. the sinking of the Lusitania
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One of the potential reasons that Allied soldiers forced German citizens to visit the Buchenwald death camp was "<span>D. to remove their ignorance of the horrors of the Nazi extermination camps," since many Germans failed to accept the truth. </span>
Because agriculture was a new lifestyle in world history, people didnt have to hunt anymore.