While definitely not new by World War I, this technology was definitely cutting edge. Which of these made it extremely difficult for soldiers to physically cross no man's land and attack enemy trenches?

Barbed wire placed in front of trench works played an often underrated role in WWI combat. It could be laid often hundreds of feet deep in some areas, and required specific planning to clear it during an attack.

Asked by Riley Schmidt · Last updated 2 years ago · 6.9K views · SOURCE