If you were to argue that WWII is a continuation of WWI, you could cite the fact that Hitler's expansion of the German military and invasion of Poland (both events that started WWII) violated what was agreed upon in the Treaty of Versailles (written at the end of WWI). Additionally, since Japan felt that they did not receive what they deserved at the end of WWI, they had a thirst to conquer more lands, which of course added to WWII.
A dominate idea in a work of literature that contributes to the main theme. A motif can be a repeated pattern or idea, the use of color to add meaning or a recurring verbal pattern. Motifs are often intangible.
