"One who is fearful and fainthearted"

Q: What does a soldier do if he is afraid to go into war?
A: Although in an optional war "one who is fearful and fainthearted" may remain at home, we are now in an obligatory war and "one who is fearful and fainthearted" also goes to battle. But why would we want "one who is fearful and fainthearted" in battle? Answer: When the Land of Israel is in danger and the Nation of Israel is in danger, a person who is weak also says: "I have courage!" It is true that a soldier is sometimes scared, but this is until he shoots the first bullet and then he is filled with strength and courage. He has no time to be scared. He is constantly active. A person once caused some mayhem on the Temple Mount and there were a multitude of Arabs on the street. At that exact time, I was driving by the Old City with other people in the back. The Arabs attacked the car, broke the windows and started to hit me inside the car. I continued driving in a zigzag between the Arabs. I arrived at the Dung Gate, turned off the car, took out the key and promptly fainted. I woke up in the hospital with a pleasant doctor with a kippah and a short, pointy beard stitching my head. I said: "What a miracle that I passed out after I stopped the car. If I would have fainted before that, they would have slaughtered me and the others." He said: "It is not a miracle. When a person is exerting effort, he will not pass out. When he finishes exerting effort, he passes out." A person in the midst of a war is therefore not emotionally free to be scared. He is trembling will fear when he is waiting to go into battle because he is not doing anything. When he is active, he is not worried because he is doing something.