For Narnia!

High King Peter became immersed in his pride and honor when he first returned to Narnia. He met with Prince Caspian, gathered an army and drove them into battle. He did not wait for Aslan. Simple and pure, Lucy reminded him of what he should be fighting for. "For Narnia!" he cried, as he stormed the Telmarine city. Most of those with him died in the battle that night. He had been fighting for his honor and for the survival of Narnia, both good things, but the battle of his heart was not honorable because his focus was not on the true King, Aslan.
When Peter realized his failure and focused his heart on a greater purpose, he gathered the army to fight a second time. First, he risked his life for the Narnians by fighting the evil king alone. Then, when his army rode against thier enemy, his battle cry changed. "For Aslan!" he cried. A great change of heart for Peter accompanied the Narnians victory. He was no longer fighting for a cause, which can always become selfish, "my cause." Peter was fighting for a person, The person of Aslan. Only when we fight for a Person can our fight become true, noble, and righteous. It is then that the cause is no longer ours. We can hold no claim on the true King, but fight for Him because of His claim on us.