One of the main reasons why there were so many political revolutions in the 17th and 18th centuries is because the Enlightenment period had made people call into question the absolute authority of divinity and monarchs--making them instead interested in taking charge of their own political destiny.
Thucydides lived through the Peloponnesian War and it had a profound influence on his writing. His History of the Pelopponesian Wars is one of his most famous works.
The war was important to Thucydides' philosophy because it was the story of a rising power beginning to brush elbows with an existing power, and the intense conflict that ensued. We have seen this phenomenon many times in history, and it is known as the Thucydides Trap.
<span>The Molotov–Ribbentrop Pact, also known as the Nazi–Soviet Pact, the German–Soviet Non-aggression Pact or the Nazi German–Soviet Pact of Aggression</span>