When describing a scene of conflict or war, there are various synonyms that can be used to replace "in midst of battle". These include terms such as "engaged in combat", "amidst conflict", "in the thick of war", "embroiled in a fight", "amid the fray", "battling fiercely", "in the heat of the moment", "enmeshed in warfare", "embroiled in a battle", and "fought tooth and nail". All of these options can add depth and variety to your writing, allowing you to communicate the intensity and urgency of the scene in a more engaging and dynamic way.