He saved many people's lives while working as a Navy SEAL. He worked with marines constantly and would often teach them better tactics to make them more efficient and to reduce casualties. Chris Kyle became known as "The Legend" by his fellow teammates do to his astonishing number of confirmed kill and the heroic things he did to save other people's lives. One example played out while he was set up in an apartment complex overwatch to cover a Marine convoy. As the Marines moved down the street, Chris Kyle spotted an enemy moving towards the convoy with an RPG. He knew he had to take the shot. As he fired, the Marines thought they were being fired upon until they looked to see the man on the ground with an RPG laying beside him. The Marines later thanked him for taking the risky shot to save their lives.
Another example of Chris Kyle's selflessness is expressed as he was on the rooftop covering for the Marines clearing houses. He noticed that nearly every time they breached a home one of the Marines would have to be carried out. Knowing that he could assist them, Chris Kyle began helping them clear houses and teaching them how to do it faster and better. This shows that he is selfless enough to throw himself in the line of fire to protect the lives of other