What did the American soldier express to Dr. Sadao after recovering?

After recovering, the American soldier expressed sincere gratitude to Dr. Sadao for saving his life, despite being an enemy. He acknowledged the risks Dr. Sadao had taken by treating him in secret and showed an understanding of the doctor’s compassionate and ethical decision. The soldier’s words reflected his deep appreciation for the kindness he received, despite the hostility between their countries. His gratitude emphasized the universal bond of humanity that transcends national boundaries, which was central to the moral conflict in the story.

This question related to Chapter 4 English Vistas Class 12th NCERT.
From the Chapter 4. The Enemy.
Give answer according to your understanding.