The veteran soldier Jim Conklin comforts the main character, who picks up the flag after the color-bearer falls in battle.  
The main character of this novel is encouraged to "watch out fer ol' number one" by The Tattered Man, and is called a "wild cat" by Lieutenant Hasbrouck, who gets shot in the hand and drives a fleeing soldier back into the ranks.  Wilson's courage falters after his first battle and he gives the main character letters to hold in case he dies.  The veteran soldier Jim Conklin comforts the main character, who picks up the flag after the color-bearer falls in battle.  FTP, identify this novel about Henry Fleming, a Civil War novel by Stephen Crane.
The main character of this novel is encouraged to "watch out fer ol' number one" by The Tattered Man, and is called a "wild cat" by Lieutenant Hasbrouck, who gets shot in the hand and drives a fleeing soldier back into the ranks.  
The Red Badge of Courage