Why is a resolution important to a short story?

Resolution is important to a short story because the resolution puts the events and characters in a stable situation, ending the tension of a story.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.