What is the significance of the anti-war sentiment expressed by Dongshan and Cai Wei?

Its significance lies in accusing the cruelty of war and expressing the desire for a peaceful life.

1. Accusing the cruelty of war: Both Dongshan and Cai Wei wrote that soldiers who had been guarding the border for a long time could finally go home to reunite with their families after the war, only to find that their families were old and their houses were desolate and dilapidated. This aversion and helplessness to war reflected people's general attitude towards war at that time.

2. Expressing the desire for a peaceful life: Both poems describe that soldiers are exhausted in the war, and their life and death are uncertain, making it difficult to go home and reunite with their families. This desire for a quiet life is the simplest and most sincere desire in people's hearts.