"Shells fired at a high altitude – such as from mortars and distant artillery batteries – had a tendency to explode in the treetops. When this happened, the troops below would be subject to flying splinters and tree branches in addition to the shell blast that was not muffled by contact with the earth."
Tree bursts. This is where the shells explode in the trees and add splinters to the showers of shrapnel, but also because of the elevation of the explosion the pattern of the shrapnel can make cover less effective as it's coming down from above.
Edit: Wish this would hurry up on the reprint, I was pipped at the post at the last minute on ebay again yesterday!
Last edited Thu Aug 1, 2013 9:10 am (Total Number of Edits: 1)