Shaw rejected romanticism and embraced realism. How realistic is arms and the man? How much of it is " unrealistic "?

I think there is a lot of realism to be found in the narrative of war. The reality of war falls far from this romanticized vision. In the play’s opening scene Bulgarian soldiers hunt and kill fleeing Serbians in the streets of a quiet mountain town. Once Captain Bluntschli, a career soldier, appears, he becomes an eloquent messenger for the horrors of war. He describes conditions of starvation and exhaustion at the front lines. Moreover, having been under fire for three days, he seems to be suffering from some form of Post-Traumatic Stress Disorder, jumping nervously when Raina squeals. What first appears to be the most glorious moment in the war, Sergius’ cavalry charge, is revealed to be an absurd case of dumb luck. Later in the play Captain Bluntschli helps Major Petkoff and Sergius coordinate the return routes of surviving troops so as to prevent starvation. Since the play begins in the aftermath of the Serbo-Bulgarian War, the reader doesn’t experience any titillating battles, only a grinding post-war reality where hunger and death loom in the background. This picture successfully deflates any romantic notions the characters or audience may hold.