communication trench links the front line and first support line trench supports trench.
During World War I, "support trenches" were found throughout the theaters of the war wherever trench-lines were constructed. Running perpendicular and parallel both to the main defense-line trenches, support trenches enabled front-line troops to communicate with each other, receive supplies, and organize for coming battles without being in the line of fire of the enemy across the (often quite narrow) "no man's land" between enemy lines.
well the question you asked does not make and sense. but during WWI there was trench warfare. The Germans had many trenches especially on the west front.
Trench warfare.
In the same trench, they'd probably just yell down the line or walk. If they were in different trenches, they'd send a runner, someone with a track or some sort of running background to pretty much dodge bullets to get the message to the other trench.
At the front there was the front line, then there was the support trench and at the back was a reserve trench.
communication trench links the front line and first support line trench supports trench.
this site is rubbish
communication trench links the front line and first support line trench supports trench.
Front line trench Support trench reserve trench
the reserve trench were the lin eof trenchs that are behind the front lin trench. if or when the front line trench is captured, the solidiers can use the reserve trench line and the substitute front line
Between 70 and 100 yards (64-91 m) behind the front trench was located the support (or "travel") trench, to which the garrison would retreat when the front trench was bombarded. Between 300 and 500 yards (275-460 m) further to the rear was located the third reserve trench, where the reserve troops could amass for a counter-attack if the front trenches were captured.
Trench warfare was rarely used on the eastern front during World War I because the terrain was more open and less suitable for digging extensive trench systems. The vast distances and fluid nature of the fighting on the eastern front also made it difficult to establish static trench lines.
Soldiers who were new to the trenches of World War I quickly learned their way around the trench system. All of the trenches were dug with a main trench against the front line and several support trenches behind that. The formulaic nature of trench construction made it fairly easy for soldiers to find their way around.
There were differences in the function and importance of trenches. The first one (closest to the enemy) was also called the Front Line or the Fire Line. A 100 yards behind it you had the support trench and again some 100 yards behind, the reserve trench. And then you had the connecting trenches, who were just there so you could get from one trench to the other. There wasn't a real 'hierarchy' anmong trenches: the front line was most important for fighting, but the other two were important for their support facilities, radio and command rooms and as places for soldiers to rest from front line duties.
As a defensive measure, in case the front trench was overrun.
Trench warfare developed on the Western Front during World War I due to the stalemate between the Allied and Central Powers, with both sides digging trenches for protection. On the Eastern Front, the vast open spaces and more fluid military tactics made trench warfare less practical.