<p>1) Primary Event of WWI. Decision to fire a gun (i know its sorta big) to kill ferdinand of Austria. This lead to the killing of millions of people
2) Primary Event of WWII. Decision of Allied powers not to contain Hitler (and by contain i mean without any violence) after he decided to take Austria. Because they didn't he took the sunderland and eventually poland, increasing his land mass by more than 50%. </p>
<p>good?</p>