/ˈfreɪtrɪsaɪd/ – noun
Definition: 1. tội giết anh em;
2. kẻ giết anh em.
A more thorough explanation: Fratricide is the act of killing one’s brother or sister, or the killing of one’s own troops, especially in a military context.
Example: The defendant was charged with fratricide after allegedly killing his own brother.