What was trench warfare
{"Image DocumentName": "What was trench warfare?", "Image ImageDescription": "Trench warfare was a system of warfare. where opposing armies. dug ditches to protect. themselves from enemy. machine guns and. artillery.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}