The significance is based on the importance of survival to the soldier.
Explanation:
Based on a soldiers kind of duty, he could exit the earth at anytime especially during war situations.
"To no man does the earth mean so much as the soldier" speaks majorly on how the soldier views survival.
The most important factor to all human being is survival. The Earth is symbolic to life. A soldiers goal is to survive, he thrives and fights to remain on earth. If they remain on earth then they have so far succeeded.
Hello! A soldier's job is to defend his country, an ideal, his territory. In general, wars occur due to the position of the territory, so the soldiers will fight for it and if they lose it, they will take it away from them. That is why they are more interested, in addition to fighting in a certain territory.
