Final answer:
During World War 1, technological innovations in Improved communication, advanced weaponry, and medical advancements greatly benefited combatant nations. Notably, the British introduced the tank, revolutionizing the nature of warfare.
Step-by-step explanation:
Technological innovation offered several benefits to combatant nations during World War 1. These include Improved communication, which allowed for more efficient coordination between various military units, advanced weaponry such as machine guns, long-range artillery, and tanks that significantly increased combat effectiveness, and medical advancements that improved the survival rates of injured soldiers. Furthermore, the introduction of new military technology was pivotal in changing the nature of warfare. For example, the British introduced the tank in World War I, which helped overcome the challenges of trench warfare.