Hello. You forgot to say that this question is related to "The Enemy".
Answer:
Because the shelter at the doctor's house gave the soldier comfort and compassion, which he would not find if he returned to combat.
Explanation:
When the soldier arrived at the doctor's house, he was highly injured, weak, tired and very traumatized by all the horrors he witnessed in the war and by all the abuses he suffered at the hand of the enemy army. However, the doctor's family took care of his injuries, showed him compassion and friendship, gave him comfort and security. The soldier did not want to lose those good feelings that the doctor's house allowed him to feel and he knew that if he left the house, he would have to return to the horrors of the fight and for that reason, he was reluctant to leave the doctor's house, even putting all the family in danger.
I believe it is the second one.
Both authors of "In Flanders Fields" and "Dulce et Decorum Est!" chose the same historical event as the setting but these books shows the World War 1 from two absolutely different points of view. "In Flanders Fields" author praises and blesses all those warriors who protected their native land fighted for it and its future generations. While reading this story you feel persuasive tone that aimed to make you feel the same. "Dulce et Decorum Est!" shows the most appalling things that happened during the War and urges us that if we had ever been through It all it would have been the worst nightmare in our life. To conclude : in the first story author eulogizes War whereas the second warns against it.
