Because they were holding on to something. There is some good in this world and it worth fighting for, worth dying for.

因为他们有一个信念- - - - - -相信这个世界上总有善的存在，值得我们为之战斗，为之牺牲。

youdao

They kept going. Because they were holding on to something... That there's some good in this world... and it's worth fighting for.

他们不屈不挠，因为心中有所持…这个世界上总是有美好的事物…值得我们去奋斗。

youdao

He points out that U.S.soldiers, before this generation, were fighting Asians - Japanese in World War II, then Koreans and Vietnamese.

VOA: standard.2010.07.14