chemical warfare

US /ˈkem.ɪ.kəl ˈwɔːr.fer/
UK /ˈkem.ɪ.kəl ˈwɔːr.fer/
"chemical warfare" picture
1.

warfare using chemical agents to kill or injure or incapacitate enemy personnel

:
The international community condemns the use of chemical warfare.
Treaties have been signed to ban chemical warfare.