前南斯拉夫联盟的民族构成复杂就与其曲折的民族形成史有很大关系。

The former Yugoslavia was crammed with diverse nationalities and they did not mix well.

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他说，必须指出，以美国为首的北约对南斯拉夫联盟共和国的军事行动给该地区人民造成了深重灾难。

Tang said "it must be clearly stated that the military operation of U.S.-led NATO against Yugoslavia has brought abysmal disaster to people in the region."

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