The Lusitania lead to U.S. entry in to WWI because they didn't like Germany's submarine warfare.
Controlling the distribution of land and resources
<h3>The Abdication of Kaiser Wilhelm II</h3>
Wilhelm II abdicated from the throne as emperor of the 2nd Reich.
Mostly, after WWI, Britain promised them their current stretch of land in the Middle East. While Britain did not deliver, this did give them their claims, and their holdings were secured in WWII and further legitimized in the current war on terror.
Fascism was based off the idea that the nation as a whole is more important than individual people. Fascism also created strong feelings of nationalism, or pride for one's country, which led to clashes with other countries, and therefore war.