Why do you think warfare changed between the early 1800s 1900s?

Warfare changed significantly between the early 1800s and 1900s due to advancements in technology, tactics, and industrialization. The introduction of rifled firearms, machine guns, and artillery made battles more deadly and increased the range and accuracy of weapons. Additionally, strategies evolved from traditional formations to more dynamic tactics that emphasized mobility and coordination, particularly evident in World War I. The rise of industrial power also meant that nations could mobilize larger armies and sustain prolonged conflicts more effectively than in earlier periods.