"Heavy fighting" refers to a situation where there is intense and aggressive combat or warfare taking place.
Sentences with «heavy fighting»
The combo - heavy fighting game enjoys an active player base with several large seasonal updates. (windowscentral.com)
But the game is incredibly stable and we ran it at about 110 frames per second even during heavy fighting. (elder-geek.com)
The Ukrainian government has blamed pro Russian rebels who've been involved in heavy fighting near where the aircraft came down. (premierchristianity.com)