Collocations for warfare - noun

open
Rivalry between football fans developed into open warfare.

conventional, modern
biological, chemical, germ, nuclear
class, gang, internecine, tribal
guerrilla, siege, trench
aerial, air, naval, submarine
asymmetric, asymmetrical
Terrorism is a response to asymmetric warfare.

jungle, mountain, urban
economic, ideological, psychological
a subtle form of psychological warfare

conduct, engage in, wage
The rebels waged guerrilla warfare against the army.

warfare against
warfare against other tribes

warfare between
warfare between gangs