The world wars were two of the most devastating and pivotal periods in 20th century history. And, after 1945 it was widely said that we'd never see another war like it. We can only hope that that's true, and that total war never happens again! But, what if global conflict did strike up once more? What if the fighting between armies and militaries all over the world caused all-new war zones all over the planet? How long could we withstand World War 3?

From 1933 to 1945 in Germany, National Socialism brought out the worst in people; the following are the worst of the worst. Join http://www.WatchMojo.com as we count down our picks for the top 10 notorious Nazis. WARNING: Contains mature content that could be disturbing to some viewers.

This war left many countries devastated and influenced generations of life. In Part 9 of our series on WWII, http://www.WatchMojo.com takes a look at the aftermath of World War II.

Almost six years to the day after it began, the bloodiest war in history drew to a close. In Part 8 of our series on WWII, http://www.WatchMojo.com looks at the final days of the Second World War and how it finally came to an end.

A number of new technologies and ideologies came forth during this battle that made war deadlier than ever before. In Part 6 of our series on WWII, http://www.WatchMojo.com explores some of the tactics and weapons used.

This battle was essentially a fight between the Axis Powers and the Allied forces. In Part 3 of our series on WWII, http://www.WatchMojo.com finds out who was fighting whom during the Second World War.

This war was a series of the bloodiest battles in history. In Part 5 of our series on WWII, http://www.WatchMojo.com learns about some of the most important battles of World War II.

In the years that followed World War I, tensions remained between countries due to differing ideologies and belief systems. In Part 2 of our series on WWII, http://www.WatchMojo.com explores how and why the Second World War began.

These were the only instances where nuclear weapons were used as a wartime measure. In Part 7 of our series on WWII, http://www.WatchMojo.com learns more about the atomic bombings of Japan during World War II.

While they may seem primitive now, the weapons of World War I completely revolutionized warfare. In Part 6 of our series on WWI, http://www.WatchMojo.com profiles the weapons and technology used in the First World War.

Several key events are considered crucial in the effort to bring to a close this bloody military conflict. In Part 3 of our series on WWI, http://www.WatchMojo.com explores how and why the First World War ended.

In Part 2 of our series on WWI, http://www.WatchMojo.com finds out who was fighting whom during the First World War.

The murder of Archduke Franz Ferdinand is credited with sparking the war, though a battle was inevitable. In Part 1 of our series on WWI, http://www.WatchMojo.com explores how and why the First World War began.