No
Roosevelt's internationalist policy may not have prevented the war. Earlier U.S. involvement may, however, have made the war shorter and less destructive.
It couldn't have, according to Dukish.
They could have prevented WW2 by giving in to the Nazis. -That was not acceptable to the British people.
Preventing world war 1 would have prevented world war 2. If Hitler was killed in ww1 well Fighting that would have left Germany out of the war. Japan Might have still done waht they did but I don't think that would make it a world war, just a war.
Ww1 could have been prevented if it wasnt for an assasin who killed the Hungarian archduke and the huns to invade Serbia. Hope this helps some facts could be wrong
Buchanan could have prevented war by not allowing the Confederate to separate from the Union. Buchanan could have also acted differently on issues of slavery, especially in Kansas.
Not now, seeing as how it was over over 90 years ago.
handwashing
You can talk about how it changed the whole world. Also bring up how it could have been prevented or how many deaths.
WW2 prevented the total conquer of the Nazis over the world.
World War I