engagedEnemyShips

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: engagedEnemyShips

Indicates that one or more entities have actively attacked, exchanged fire with, or otherwise entered into direct combat with enemy ships.