The expression 'guerrilla force' is commonly used to describe a group of irregular fighters that engage in paramilitary operations against a larger, conventional military force. Other words and phrases that can be used as synonyms for the same concept include 'irregulars', 'partisans', 'insurgents', 'rebels', 'freedom fighters', and 'resistance fighters'. The specific term used will often depend on the political or historical context in which the group operates. Some other more specialized terms might include 'militia', 'commando unit', or 'guerrilla army'. Nevertheless, all of these words and phrases refer to similar tactics, strategies, and objectives: using hit-and-run tactics to target military or governmental installations, disrupting supply lines, and sabotaging enemy infrastructure.