<Li> The first "box barrage" in history was fired at Neuve Chapelle in 1915; this was the use of a three - or four - sided curtain of shell - fire to prevent the movement of enemy infantry </Li> <Li> The wire - cutting No. 106 fuze was developed, specifically designed to explode on contact with barbed wire, or the ground before the shell buried itself in mud, and equally effective as an anti-personnel weapon </Li> <Li> The first anti-aircraft guns were devised out of necessity </Li> <Li> Indirect counter-battery fire was developed for the first time </Li>

What were 4 technological first during the civil war