This is the 224th most frequent Russian word.
военные
"Военные" means "military" or "servicemen" in English.
In this sentence, 'военным' is used as an adjective meaning 'military' to describe 'conflicts'.
Мы посетили музей, где была выставка, посвящённая военным конфликтам.
We visited a museum where there was an exhibition dedicated to military conflicts.
Here, 'военными' is an instrumental plural form of the noun 'военные,' referring to military personnel.
На занятии рассказывали о стратегии, применяемой военными.
In class, they talked about the strategy employed by the military.
Here, 'военные' is used as a plural noun representing military personnel.