Answer:
depends what it is I'm not smart
Kidneys are you're answer.
To think deeply about something; meditate or reflect.
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.
