How is trench warfare different to warfare?

This is different from warfare in general, which refers to the broader concept of armed conflict or fighting between political groups, typically countries or nations. Warfare encompasses various forms of combat ranging from small-scale skirmishes to full-scale wars using a wide range of strategies and tactics, not limited to trench warfare. Trench warfare specifically characterizes a particular period and style of land combat during World War I, not representative of warfare in its entirety.