In under a week it will be the 100th anniversary of the armistice that ended hostilities during World War I. While WWI is distant enough in the past to no longer be a constant comparison to the present, those years of conflict still echo today. The war was a relatively short period when many things changed.
Thousands of others have already written at length about the first modern war and its consequences. These works fill entire libraries. Instead, here I look at what enduring technologies and strategies WWI gave opportunity to arise.