Kuanghua- how far does good leadership depend on courage?

Good leadership depends on courage when they need to make sacrificial decisions for greater good. When leaders are facing some problems, they have to make sarificial decisons in order to protect the rights of majority of their people. As a good leader, they should make these diffcult decisions which depends a lot on their courage. For example, during the second sino-japanese war, the leader of China, Mao, decided to fight against Japanese army when the Japanese military force is much developed than China's. Because of his decision, Chinese people scarificed millions of soldiers but they won the war finally. When Mao made and insisted this scarificial decision, there were other parties in China had already surrended. Thus, we can tell this diffcult decision really depended on Mao's courage. Because of his courage, Mao was seemed as the greatest leader of China. However, good leaders can avoid these if they can think ahead. For exmaple, when South Korea was suspected for making nuclear weapons, USA government decided to warn then South Korea government instead of attacking it. Thus, USA leader thought ahead so they avoided useless scarifice.