which factor led to WW1

socail darwinism
nazism

Neither social Darwinism nor Nazism directly led to World War 1. The factors that led to the outbreak of the war were much more complex. However, there were underlying causes that contributed to the tensions and rivalries among European powers, which eventually erupted into war:

1) Nationalism: Intense pride and loyalty towards one's own nation was a significant factor. Nationalistic sentiments created disputes over territories and increased competition among European powers.

2) Imperialism: The scramble for colonies and resources around the world heightened rivalries and tensions between European powers, particularly in Africa and Asia.

3) Alliances: A system of complex alliances developed among European powers before the war, pulling countries into a conflict if their allies were attacked.

4) Militarism: A surge in military build-up, arms race, and the belief in the supremacy of military power led to preparedness for war. This, in turn, increased tensions among nations.

5) Assassination of Archduke Franz Ferdinand: The assassination of the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, by a Serbian nationalist in June 1914 sparked a diplomatic crisis, culminating in the outbreak of war.

While ideologies like social Darwinism and Nazism had a significant impact on later conflicts, such as World War 2, they did not directly cause World War 1.