WWI: The First Modern War (2014) is a Documentary, War & Politics series that follows when ancient war tactics became overwhelmed by powerful new weapons like tanks, air attacks, weapons of mass destruction and submarines, a pivotal game-changing moment in history occurred. History is delving into the background of each weapon explaining the how and why they were developed, the strategy, and their ultimate effectiveness. Currently, you can watch WWI: The First Modern War on HISTORY Vault Apple TV Channel, HISTORY Vault Amazon Channel, Amazon Video, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 7.0 out of 10 from 5 votes. Fans of documentary series may also want to explore similar titles below.