Just look at the care label.
As a defensive measure, in case the front trench was overrun.
Because as soon as you came out of YOUR protective trench to get to the enemies trench you would be machine gunned down.
It was much easier to defend a trench because you were behing cover and camped in to your position unlike the attackers who were running across open plains and were constantly loosing men and getting shot down by machine gun fire.
blimp plane machine gun
Weapons like machine guns could easily kill troops in the open.
In the days of trench warfare, they were. In modern times, they are not.
The machine gun caused trench warfare to be a necessity as 90%+ of the casualties of WW1 were from this weapon. The use of Napoleonic tactics against new technologies was disastrous.
The most common deaths in the trench warfare were shot by machine guns, afterwards to solve the problems of the machine guns tanks were introduced
The Deepsea Challenger Sub recorded the deepest dive into the Mariana's Trench. James Cameron became the first person to reach 6.8 miles down to the floor of the trench.
As a defensive measure, in case the front trench was overrun.
The machine gun was devastatingly effective weapon against infantry charge.It could fire 8 bullets a second or more, and each trench would have a number of machine guns. During an infantry charge it could cut down a whole bregade in minutes! the machine gun made it unevitable that any charge on an infantry trench would cost many lives!
The invention of machine guns, gas warfare and trench warfare