Consular protection is not only a special system in international law, but also an important component of relations among states.

领事保护是国际法的一个特殊制度，也是国家间关系的一项重要内容。

youdao

James Thessin, the chief U.S. agent to the court, admitted that Arizona authorities violated the Vienna Convention on Consular Relations by failing to inform the LaGrands upon arrest on January 7, 1982, of their right to assistance from the German consulate.

CNN: U.S. accuses Germany of undermining death penalty