What was reported to be the most terrifying to soldiers on the front because they often couldn’t see it

It is possible that this statement is talking about the illnesses the soldiers got as a consequence of being on the front. Illnesses such as trench fever, trench foot, gas poisoning and shell shock made things worst for soldiers during the war. They were as dangerous as weapons but more difficult to see.

d.summerains, the last one

judaism, christianity and islam, are all abrahamic religions and therefore have in common the hebrew idea of a single god which is the source of all morality. the idea of the covenant is only related to judaism, while dharma is a concept of indian religions and the four noble truths are basic principles of buddhism.