The conflict, called the Great War by those involved, was the first large-scale example of modern warfare - technologies still use in battle today were introduced in large scale forms then, some (like chemical attacks) were outlawed and later viewed as war crimes. The newly-invented aero plane took its place as an observation platform, a bomber, and an anti-personnel weapon, even as an anti-aircraft defense, shooting down enemy aircraft. Here, French soldiers gather around a priest as he blesses an aircraft on the , in 1915.