In "An Occurrence at Owl Creek Bridge," what are both the internal and external conflicts in the story?

In part two, the internal conflict is revealed when Bierce elaborates on Peyton Farquhar's inner struggle to participate in the Civil War. Having an aristocratic southern background prevents Farquhar from enlisting in the Confederate Army, which bothers Peyton to the point that he decides to burn down the Owl Creek Bridge as a way to aid the Confederate cause. Ambrose Bierce does not go into detail as to why Farquhar cannot enlist, but he writes,

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In part two, the internal conflict is revealed when Bierce elaborates on Peyton Farquhar's inner struggle to participate in the Civil War. Having an aristocratic southern background prevents Farquhar from enlisting in the Confederate Army, which bothers Peyton to the point that he decides to burn down the Owl Creek Bridge as a way to aid the Confederate cause. Ambrose Bierce does not go into detail as to why Farquhar cannot enlist, but he writes,

Circumstances of an imperious nature, which it is unnecessary to relate here, had prevented him from taking service with the gallant army that had fought the disastrous campaigns ending with the fall of Corinth, and he chafed under the inglorious restraint, longing for the release of his energies, the larger life of the soldier, the opportunity for distinction (4).

Farquhar's insecurities and longing to participate in the fight against the North motivate him to risk his life by destroying the Owl Creek Bridge. Farquhar essentially feels inadequate because he is not a Confederate soldier and, thus, does not have numerous opportunities to fight Union troops.

Another internal conflict involves Peyton's inability to accept his fate. While waiting to die with a noose around his neck, Farquhar fantasizes about escaping. Farquhar imagines a scenario where his noose snaps and he falls into the water below. Farquhar's inability to accept the difficult reality is illustrated by his continual thoughts of escape before he is hanged.

The external conflicts throughout the story concern the belligerents involved in the Civil War and Peyton's struggle against the Union soldiers who are about to hang him. Throughout the story, the Union Army is fighting a war against the Confederacy, which seceded from the Union in 1860. Peyton's conflict begins when he is manipulated by a Union spy to burn down the Owl Creek Bridge. Unfortunately for Peyton, he is arrested and hanged by the Union soldiers stationed at the Owl Creek Bridge.