
Trenches
Trenches are long, narrow excavations in the ground, often associated with military history, particularly during World War I. Soldiers dug trenches to protect themselves from enemy fire and to hold defensive positions. These trenches formed extensive networks and included areas for living, storage, and medical care. Life in the trenches was harsh, characterized by poor hygiene, exposure to the elements, and constant danger. Beyond military use, trenches are also studied in geology and environmental science, where they refer to deep, elongated depressions in the Earth's surface, such as oceanic trenches that form tectonic plate boundaries.