Infantry Regiment

Almost every people seem to think that trenches and entrenchment fortifications are easy to destroy using artillery.They think you just hit the trenches with one shot and people in it will easily be slaughtered.

But trenches and entrenchment fortifications are designed to protect and if possible immune soldiers from artillery fire!Although soldiers could still get hit by artillery fire and killed or wounded trenches and entrenchment fortification really minimized casualties and prevented all the soldiers in the same spot from getting killed!

Besides in order for artillery to effectively destroy entrenchment fortifications they have submit continious fire that were known to take hours or even days to actually begin making damages to the trenches!And not to mention soldiers could always attempt to repair the entrenchment fortifications to its original state.

And there is still the big problem of having to watch out for enemy artillery or trying to get the artillery in firing range.
So why do people think entrenchment fortifications could be easily destroyed by artillery?Why do they picture trenches as defenses that could be blasted apart by one shot?

They don’t. I find it absurd that you claim people think this. Most likely you are hanging out with morons.

The reason they built trenches was to protect from artillery and other weapons. This is why the First World War was deadlocked for years.

Stop hanging out with morons.