2 Verbs to Use for the Word fratricides

The Government, now subvertedalways maladroitrushed into a conflict without considering either its own unpopularity, or the fraternal feeling that animates the armies; the entire army, when ordered to commit fratricide, replied with cries of "Vive la République!"

and he commiserated himself upon having a son, but said that he found it a solace in his disaster to think that he had outlived the fratricide who attempted to destroy the whole world.

2 Verbs to Use for the Word  fratricides