What's the adjective for hostilities? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verb hostilize which may be used as adjectives within certain contexts.
hostile
Belonging or appropriate to an enemy; showing the disposition of an enemy; showing ill will and malevolence, or a desire to thwart and injure; occupied by an enemy or enemies; inimical; unfriendly