(Indefinite): Use "a" when referring to a general instance of such a fight (e.g., "It was a mortal combat").
: Use no article when referring to the concept in a general or abstract sense (e.g., "They were engaged in mortal combat"). Meaning and Usage Е›miertelna walka
: In Polish, "walka" is a feminine noun, and "śmiertelna" is the corresponding feminine adjective. WALKA | translate Polish to English - Cambridge Dictionary (Indefinite): Use "a" when referring to a general
: It is frequently used in Polish as the literal translation for the franchise "Mortal Kombat" . "walka" is a feminine noun