question:  Who is the protagonist of the story and what is their main objective?
context: HOMECOMING BY MIGUEL HIDALGO What lasts forever? They had no place in the dust-caked, tired body, yet there they were, seeking, always seeking—searching the clear horizon, and never seeming to find what they sought. They were nearing a river; the water would be welcome on tired bodies and dry throats. He spurred his horse, and when they reached the water's edge, he dismounted and unsaddled the horse. Then both man and horse plunged headlong into the waiting torrent, deep into the cool embrace of the clear liquid. Then he led him silently to a grassy slope where he hobbled him and left him for the night. Refreshed and momentarily content, he sat staring into the dying fire, seeing the bright glowing coals as living fingers clutching at the wood in consuming embrace, taking all and returning nothing but ashes. Images began to appear, drawn from inexhaustible files, wherein are kept all thoughts, past, present, and future.... World War III had been declared, and he had enlisted, receiving his old rank of captain. When he opened it, he found a picture of her in one side, and in the other a picture of the children. Then he kissed her, and instantly was drawn down into the abyss which seemed to have no beginning or any end. His cold fingers found the locket, making a little bulge under his uniform, and the touch of it seemed to warm the blood in his veins. Three days later they had landed in Spain, merged with another division, then crossed the Pyrenees into France, and finally to Paris where the fighting had begun. Three years later they were on the road to Moscow. The Russians had not yet used the H-bomb; the threat of annihilation by the retaliation forces had been too great. They were bound for bigger, more important targets. When the all-clear had sounded, the men clambered from their shelters.
output:  An ex soldier who fought in World War III, traveling home to his wife.
options:  An ex soldier who fought in World War III, looking for his children who have gone missing.  An ex soldier who fought in World War II, traveling home to his wife and children.  An ex soldier who fought in World War III, traveling home to his wife.  An ex soldier who fought in World War III, looking to avenge his wife’s death.