Those tensions go all the way back to the Crusades - when Christian armies invaded the Holy Land.

VOA: standard.2010.03.18

In American history our reform crusades have usually had to do with one of several objects or purposes or problems.

在美国历史上我们为理想而进行的改革,通常与如下几个目的,或意图,或者问题之一有关联

耶鲁公开课 - 美国内战与重建课程节选

The conflict was given the features of religious conflict, just like the crusades were given the name of symbol of Christianity and came to the near East with these values.

这个冲突有宗教冲突的特点，就像十字军东征被称作是,基督标志,他们带着这些价值观来到东方。

普林斯顿公开课 - 人性课程节选