How did the alliance system contribute to the outbreak of world war I

The alliance system caused the World War I to escalate from a regional conflict into a global war. Two major alliances existed in Europe prior to World War I. Austria and Serbia were allied with Germany and Russia respectively, leading Germany and Russia to declare war on each other.

Explanation:

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow