Read the excerpt from a letter written by a German soldier to his wife in 1943 during World War II. Then answer the question in an extended response.

“The attack by the countless hordes in the past weeks is over. The silence of death rests over the battlefield, over the smoking, destroyed Soviet tanks, over the masses of troops the Bolsheviks drove to death. The loneliness of the steppes returns. Their attack was in vain, their sacrifice forgotten, broken against our death-spewing weapons, against our strength, against our will, against our faith, which is stronger than any challenge. For in our hearts is Germany, the Germany that must live, Germany that is you and the children. You are the homeland for us, and we carry you in our hearts. We fight and sacrifice and bleed for you. We never weaken for a second, for you must be protected.”

Primary sources like this letter are an excellent source of information as they were written by eyewitnesses to the historical event. However, primary sources can also show bias. Explain how this excerpt demonstrates bias. Cite text evidence to support your response.